The acronym PGRN stands for Pharmacogenomics Research Network. More information about this network of scientists is at http://www.nigms.nih.gov/Research/FeaturedPrograms/PGRN. Like the field of pharmacogenomics itself, the PGRN logo combines elements of genetics (stylized DNA) and pharmacology (capsules).To request permission to use the PGRN logo, please send an e-mail to info@nigms.nih.gov with a description of your intended use (please be specific and include a mockup if available).