FABRICANT, S J HARPHAM, T Publication Date 1993 p 341-348 Serial Title:Bulletin of the World Health Organization Serial Part:Vol 71 No 3 & 4 View webpage for full text https://www.ncbi.nlm.nih.gov/pmc/issues/166659/ Keywords Research; data collection; research design; survey Language English Type of material text Log in or register to post comments