Improving rheumatoid arthritis comparative effectiveness research through causal inference principles: systematic review using a target trial emulation framework
Sizheng Steven Zhao, Houchen Lyu, Daniel H Solomon, Kazuki Yoshida
Annals of the Rheumatic Diseases Jul 2020, 79 (7) 883-890; DOI: 10.1136/annrheumdis-2020-217200