S. Yang

Development and Validation of Nomogram Prediction Model for Postoperative Sleep Disturbance in Patients Undergoing Non-Cardiac Surgery: A Prospective Cohort Study

Qin Zhang, Qian Zhang, Fangming Shen, 2021, Nature and science of sleep.

The Effects of Overstration on the Stratified Log Rank Test for Survival Analysis

S. Yang, 2012 .