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Park, Jae Myung; Mun, Yoon Gwon; Lee, Han Hee; Lim, Chul-Hyun; Cho, Yu Kyung; Choi, Myung-Gyu . (2018). Mo1193 - should We use the Composite Score to Predict Mortality in Nonvariceal Upper Gastrointestinal Bleeding? Derivation and Validation of C-Reactive Protein. Gastroenterology, 154(6), S-702–. doi:10.1016/s0016-5085(18)32474-0 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research