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Original publication

DOI

10.1136/bmj.j4587

Type

Journal article

Journal

Bmj (clinical research ed.)

Publication Date

16/10/2017

Volume

359

Addresses

Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, PO Box 14155-6446, Tehran, Iran mansournia_m@sina.tums.ac.ir.

Keywords

Humans, Observer Variation, Proportional Hazards Models, Sensitivity and Specificity, Longitudinal Studies, Confounding Factors (Epidemiology), Biomedical Research, Research Design, Time Factors, Female, Male, Observational Studies as Topic, United Kingdom