by Lichtenstein, Gary R, Feagan, Brian G, Cohen, Russell D, Salzberg, Bruce A, Safdi, Michael, Popp, John W, Langholff, Wayne, Sandborn, William J
Published in Inflammatory bowel diseases (16.02.2018)

by Trivedi, Parth D., Mohapatra, Aditi, Morris, Melissa K., Thorne, Shannon A., Smith, Sandy C., Ward, Amanda M., Schroy, Paul, Hampel, Heather, Jandorf, Lina, Popp, John W., Itzkowitz, Steven H.
Published in Gastroenterology (New York, N.Y. 1943) (01.04.2022)

by Marini, Joseph C., Sendecki, Jocelyn, Cornillie, Freddy, Popp, John W., Black, Shawn, Blank, Marion, Gils, Ann, Van Stappen, Thomas, Hamann, Dörte, Rispens, Theo, Thérien, Lina, Chun, Kelly, Shankar, Gopi
Published in The AAPS journal (2017)

by Bjorkman, David J., MD, MSPH, Popp, John W., MD, FACG
Published in Gastrointestinal endoscopy (01.04.2006)

by JOHANSON, John F, POPP, John W, COHEN, Lawrence B, LOTTES, Sandra R, FORBES, William P, WALKER, Kelli, CARTER, Edwin, BING ZHANG, ROSE, Martin
Published in The American journal of gastroenterology (01.10.2007)

by Bjorkman, David J, Popp, Jr, John W
Published in The American journal of gastroenterology (01.04.2006)

by Popp, Jr, John W
Published in The American journal of gastroenterology (01.01.2006)

by Schmitt, Colleen M., Thrailkill, Eric, Popp, John W.
Published in Gastrointestinal endoscopy (01.06.2019)

by Trivedi, Parth D., Gong, Emma W., White, Pascale M., Lucas, Aimee L., Thorne, Shannon, Jandorf, Lina, Shah, Brijen J., Popp, John W., Itzkowitz, Steven
Published in Gastroenterology (New York, N.Y. 1943) (18.05.2024)

by Wynter, Jamila S., Trivedi, Parth D., Jandorf, Lina, Shah, Brijen J., Popp, John W., Morris, Melissa, Thorne, Shannon, Smith, Sandra, Ward, Amanda, Itzkowitz, Steven, White, Pascale M.
Published in Gastroenterology (New York, N.Y. 1943) (01.05.2022)

by Mohapatra, Aditi, Trivedi, Parth D., Morris, Melissa, Thorne, Shannon, Ward, Amanda, Hampel, Heather, Jandorf, Lina, Schroy, Paul C., Popp, John W., Itzkowitz, Steven
Published in Gastroenterology (New York, N.Y. 1943) (01.05.2021)

by Popp, John W
Published in The American journal of gastroenterology (01.03.2005)

by Popp, Jr, J W, Schapiro, R H, Warshaw, A L
Published in Annals of internal medicine (01.10.1979)

by Cohen, Lawrence B., Johanson, John F., Popp, John W., Kodali, Valli, Lottes, Sandra R., Forbes, William P., Rose, Martin
Published in The American journal of gastroenterology (01.09.2006)

by Popp, Jr, J W, Harrist, T J, Dienstag, J L, Bhan, A K, Wands, J R, LaMont, J T, Mihm, Jr, M C
Published in Archives of internal medicine (1960) (01.04.1981)

by Warshaw, A L, Popp, Jr, J W, Schapiro, R H
Published in Gastroenterology (New York, N.Y. 1943) (01.08.1980)

by Popp, Jr, J W, Dienstag, J L, Wands, J R, Bloch, K J
Published in Annals of internal medicine (01.03.1980)