title: Re: "A proportional hazards model with time-dependent covariates and time-varying effects for analysis of fetal and infant death".
authors.forename: Gordon C S
authors.initials: GC
authors.lastname: Smith
mesh_terms: D001724:Birth Weight; D044383:Black People / Q000706:statistics & numerical data; D005260:Female; D005313:Fetal Death / Q000453:epidemiology*; D005865:Gestational Age; D006801:Humans; D007226:Infant Mortality; D007231:Infant, Newborn; D011247:Pregnancy; D011248:Pregnancy Complications / Q000453:epidemiology; D016016:Proportional Hazards Models; D012907:Smoking / Q000453:epidemiology; D016019:Survival Analysis; D013997:Time Factors; D014481:United States / Q000453:epidemiology; D044465:White People / Q000706:statistics & numerical data; D001741:Black or African American