Health interview surveys : towards international harmonization of methods and instruments / edited by A. de Bruin, H. S. J. Picavet, A. Nossikov ; WHO Regional Office for Europe
Ilmunud
Copenhagen : [WHO Regional Office for Europe], 1996
Health interview surveys : towards international harmonization of methods and instruments / edited by A. de Bruin, H. S. J. Picavet, A. Nossikov ; WHO Regional Office for Europe
Ilmunud
Copenhagen : [WHO Regional Office for Europe], 1996