1. Q4B evaluation and recommendation of pharmacopoeial texts for use in the ICH regions: annex 10(R1) : polyacrylamide gel electrophoresis general chapter Publication: Silver Spring, MD : Center for Drug Evaluation and Research, September 2017 Subject(s): Drug ApprovalPharmacopoeias as Topic -- standardsCongresses as TopicElectrophoresis, Polyacrylamide GelInternational CooperationHumansEuropeJapanUnited StatesUnited States. Department of Health and Human Services.United States. Food and Drug Administration.