1. Pulmonary Arterial Hypertension Associated With the Chinese Herb Indigo Naturalis for Ulcerative Colitis: It May Be Reversible 
Mayu Nishio, Keiji Hirooka, Yasuji Doi 
Gastroenterology 
Volume 155, Issue 2, Pages (August 2018)
DOI: /j.gastro
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2. Figure 1
Endoscopic image during indigo naturalis (A), and 8 months after discontinuing indigo naturalis (B).
Gastroenterology  , DOI: ( /j.gastro )
Copyright © 2018 AGA Institute Terms and Conditions