title: [Discussion welcome].
authors.forename: D
authors.initials: D
authors.lastname: Singer
mesh_terms: D015982:Bias; D003627:Data Interpretation, Statistical; D005858:Germany / Q000453:epidemiology; D005859:Germany, East / Q000453:epidemiology; D005860:Germany, West / Q000453:epidemiology; D006801:Humans; D007223:Infant; D007226:Infant Mortality / Q000639:trends*; D007231:Infant, Newborn; D007235:Infant, Premature, Diseases / Q000401:mortality*; D008297:Male; D012307:Risk Factors; D016019:Survival Analysis; D015996:Survival Rate