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<?xml version="1.0" encoding="UTF-8"?> |
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<!DOCTYPE chapter PUBLIC |
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"-//Dawid Weiss//DTD DocBook V3.1-Based Extension for XML and graphics inclusion//EN" |
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"../../../../lib/docbook/preprocess/dweiss-docbook-extensions.dtd"> |
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<!-- |
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$Id$ |
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|
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Copyright (C) 2007 Martin Svensson, Jari Häkkinen |
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Copyright (C) 2008 Jari Häkkinen |
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Copyright (C) 2011 Jari Häkkinen, Nicklas Nordborg |
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|
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This file is part of BASE - BioArray Software Environment. |
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Available at http://base.thep.lu.se/ |
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|
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BASE is free software; you can redistribute it and/or |
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modify it under the terms of the GNU General Public License |
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as published by the Free Software Foundation; either version 3 |
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of the License, or (at your option) any later version. |
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|
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BASE is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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24 |
|
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You should have received a copy of the GNU General Public License |
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along with BASE. If not, see <http://www.gnu.org/licenses/>. |
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--> |
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|
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<chapter id="why_base" chunked="0"> |
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<?dbhtml filename="why_base.html"?> |
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<title>Why use BASE</title> |
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|
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<para> |
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BASE was initially developed to manage array-based data but is now |
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extended to support storage and analysis of sequencing data. The |
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first sequencing application is RNAseq. |
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</para> |
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|
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<para> |
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We outline two different uses of BASE to give a flavour why you |
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should consider to use BASE. The first example describes a |
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research project involving sequencing based gene expression |
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analysis and the second example describes a microarray service |
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facility use of BASE. |
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</para> |
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|
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<sect1 id="whybase.scanb"> |
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<title>Case I: The SCAN-B BASE installation at Department of |
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Oncology, Lund University</title> |
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|
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<para> |
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<ulink |
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url='http://www.med.lu.se/english/klinvetlund/canceromics/consortia/scan_b'>SCAN-B</ulink> |
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is a project and network of researchers and clinicians that was |
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initialised in the fall 2009. The project is centred on a |
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prospective study where all new breast cancer patients in |
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southern Sweden are asked to enrol. Within the covered region |
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approximately 1500 patients are diagnosed with breast cancer |
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annually. The overall aim is to continuously collect and analyse |
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the consecutive, population-based, breast cancer |
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cohort. Analyses include generation of gene expression and |
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sequencing data with the ultimate goal to build an |
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infrastructure for future real-time clinical implementation. |
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</para> |
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|
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<para> |
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SCAN-B uses BASE to store and manage all information related to |
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enrolled patients and collected sample material including |
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clinical information and experimental data. Analysis and |
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execution of standard analysis pipelines for sequencing data |
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will be performed through BASE. |
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</para> |
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|
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<para> |
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The SCAN-B BASE installation consists of three main parts; |
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first, the hardware on which the system runs; secondly, the BASE |
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software and database, as well as configured analysis plugins; |
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thirdly, an external file system for storage of sequencing data |
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that are referenced from BASE. In addition, maintenance of the |
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hardware and configured database/software is required. The |
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server hardware comprises one main computer and raided hard |
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drive system. It also includes a backup solution configured to |
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backup the entire database 2 times per week. Computational nodes |
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are connected to the main computer and used to run configured |
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analysis plugins in a seamless integrated fashion. Maintenance |
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includes managing the backup-schedule, updating the main BASE |
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software, developing, configuring, and maintaining analysis |
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plugins, and maintaining the underlying database and external |
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storage file systems. |
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</para> |
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|
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<para> |
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Whereas the BASE software itself is freely available to anyone, |
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a particular BASE installation at a research site is in general |
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not freely accessible. Although BASE can be downloaded and |
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installed on a regular of-the-shelf personal computer with |
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relative ease by anyone, considerable effort and costs are |
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associated with maintaining a BASE installation of the size and |
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scope of the SCAN-B BASE installation. A pristine BASE |
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installation includes generic features and functionality to |
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support a framework of procedures to manage data collection in |
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large projects. Within SCAN-B large effort is spent on defining |
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the required procedures where laboratory work is mirrored in |
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BASE. This implies interplay with adopting the BASE software |
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(the <ulink |
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url='https://baseplugins.thep.lu.se/wiki/net.sf.basedb.reggie'>Reggie |
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extension</ulink> is an example of adaptation on BASE to |
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specific needs in SCAN-B) and the laboratory work to achieve |
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efficient data collection. To achieve high quality data |
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production, measures for continuous quality assurance and |
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collection of data associated with patients, samples, and |
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laboratory processing must also be implemented. |
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</para> |
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|
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</sect1> |
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|
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|
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<sect1 id="whybase.sciblu"> |
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<title>Case II: The BASE installation at SCIBLU, Department of |
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Oncology, Lund University</title> |
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|
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<para> |
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In the spring of 2004, Lund University created Swegene Centre |
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for Integrative Biology at Lund University (<ulink |
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href='http://www.lth.se/sciblu'>SCIBLU</ulink>), which comprise |
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the merger of five of the most successful Swegene resource and |
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development platforms into one unit, located in the Lund |
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University Biomedical Centre (BMC). SCIBLU offers integrated |
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service within the main -omics areas. The DNA microarray |
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technology within SCIBLU was initially established in 2000 as a |
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cancer research resource at the department of Oncology and in |
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conjunction with this the development of BASE was initiated. |
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</para> |
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|
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<para> |
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At SCIBLU a BASE installation is maintained and used as a |
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production installation that manages information surrounding |
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array fabrication (array LIMS) as well as array data generated |
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by the SCIBLU provided services. This particular BASE |
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installation was initially set up in 2003 and to date manage |
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array data from more than 13 000 hybridisation covering a |
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variety of technical platforms such as cDNA, oligo, and BeadChip |
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expression arrays, as well as BAC and oligo aCGH arrays. |
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</para> |
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|
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<para> |
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The SCIBLU BASE installation consists of two main parts; first, |
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the hardware on which the system runs; secondly, the BASE |
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01 Nov 11 |
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software and database, as well as configured analysis plugins. |
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01 Nov 11 |
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Regular maintenance of the hardware and configured |
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database/software is also required. The hardware comprises one |
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main computer and raided hard drive system. It also includes a |
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backup solution configured to backup the entire database 2 times |
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per week. Finally, the hardware includes 2 computational servers |
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connected to the main computer and used to run configured |
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01 Nov 11 |
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analysis plugins in a seamless integrated fashion. The software |
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used for the SCIBLU BASE installation is freely available from |
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the BASE project site. Maintenance include managing the |
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backup-schedule, updating the main BASE software, updating and |
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01 Nov 11 |
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managing probe annotations, management of user accounts, |
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configuring and maintaining analysis plugins, and maintaining |
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the underlying database. |
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01 Nov 11 |
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</para> |
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01 Nov 11 |
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|
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<para> |
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Users of the microarray services offered by SCIBLU, e.g., |
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expression analysis or aCGH, are provided access to the SCIBLU |
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production BASE installation as part of the included |
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services. The access comprises user account, access to array |
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LIMS (when in-house produced arrays are utilised), and hard |
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drive space to cover space needed for storing the data generated |
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through the SCIBLU provided service. Additional disk space can |
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be acquired and is associated with an additional cost for the |
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user. Examples of when additional disk space is needed include |
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scenarios where users want to perform extensive data analysis |
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within BASE and decide to store the analysis results within |
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BASE, e.g., many parallel analysis branches or extensive |
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generation of data plots and figures. Other examples include |
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when users want to import data from third party providers |
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(public data repositories or alternative array data providers) |
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to perform meta-analysis with their data generated within |
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SCIBLU. |
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</para> |
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|
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</sect1> |
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</chapter> |