AUTHOR=Wu Xiaolin , Xu Chenhui , Wang Wei TITLE=Reduction and Alkylation of Proteins in 2D Gel Electrophoresis: Before or after Isoelectric Focusing? JOURNAL=Frontiers in Chemistry VOLUME=5 YEAR=2017 URL=https://www.frontiersin.org/journals/chemistry/articles/10.3389/fchem.2017.00059 DOI=10.3389/fchem.2017.00059 ISSN=2296-2646