Amit Qamra ,NK Soni, HH Trivedi , Sanjay Kumar , Anukalp Prakash, Soumen Roy , Supriyo Mukherjee 2020. A Review of Digestive Enzyme and Probiotic Supplementation for Functional Gastrointestinal Disorders . The Indian Practitioner. 73, 3 (Mar. 2020), 35-39.