TY - JOUR AU - Pedatsur Neta AU - Stephen Stein C2 - Journal of the American Society for Mass Spectrometry DA - 2011-02-25 LA - en M1 - 22 PB - Journal of the American Society for Mass Spectrometry PY - 2011 TI - Charge States of y Ions in the Collision-Induced Dissociation of Doubly Charged Tryptic Peptide Ions ER -