John K. Marshall MD
@marshllj
Gastroenterologist at @HamHealthSci, GI Division Director at @McMasterU , Editor-in-Chief of #JCAG, Professor in @MacDeptMed, Full Member of @FarncombeInstit
ID: 2321262876
https://experts.mcmaster.ca/display/marshllj 31-01-2014 19:32:41
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