MON-LB272: A Randomized, Double-Blind, Parallel, Controlled and Multicenter Study to Assess the Efficacy and Safety of New Compound Amino Acid (19) N-L-Alanyl-L-Glutamine Injection in Postoperative Patients of Gastrointestinal Surgery with Total Parenteral Nutrition. (September 2016) - Yu, J.; Wu, G.; Liang, B.; Tang, Y.; Wang, B.; Zhang, Z.; Xiu, D.; Cai, J.