I have GEO accession numbers for 850 samples I would like to download. What is the easiest way to download a bulk of data from GEO database. I know that it can be done with a ftp or by using R (geoQuery). But I'am not sure how. Can someone please help me or give me advice on how to do this. I am new to this. Here is a link to the paper where the accession numbers can be found in the supplementary : https://academic.oup.com/biostatistics/article/11/2/242/268035?searchresult=1
Example of the accession numbers : GSM20894 GSM20961 GSM20943 GSM20836 GSM20817
Thanks in advance!