title: Practical epidemiology and biostatistics in research. IV. Putting research into operation.
authors.affiliation: Department of Community Health Sciences, Aga Khan University, Karachi.
authors.forename: M A
authors.initials: MA
authors.lastname: Lobo
authors.forename: A F
authors.initials: AF
authors.lastname: Qureshi
mesh_terms: D000163:Acquired Immunodeficiency Syndrome / Q000150:complications / Q000175:diagnosis; D001699:Biometry; D003327:Coronary Disease / Q000453:epidemiology; D004812:Epidemiologic Methods; D005260:Female; D006801:Humans; D008297:Male; D012107:Research Design