The Quintessence of Causal DAGs for Immortal Time Bias: Time-Dependent ModelsIan Shrier,Samy SuissaInternational Journal of Epidemiology(2022)引用 3|浏览2AI 理解论文溯源树样例生成溯源树,研究论文发展脉络Chat Paper正在生成论文摘要