upadacitinib,tofacitinib
abbvie,pfizer
['tofa', ' upa ']
is jak1 selectively clinically meaningful ? perhaps not ? upa vs tofa ? but in ra #acg2022 thought-provoking 
Gastroenterologist/ IBD specialist. Author:Crohn's & Colitis for Dummies.Governor American College Gastroenterology, Chair ACG PR Committee. Founder @ibdclub