TY - SER AU - Boerma,T. AU - Holt,E. AU - Black,R. TI - Measurement of biomarkers in surveys in developing countries: opportunities and problems KW - Salud Publica KW - Enfermedades KW - Mortalidad KW - Tecnicas Demograficas N1 - pp. 303-314 N2 - tbls ER -