Statistical Principles in Public Health Field Studies: Fifteenth Report of the WHO Expert committee on Health statistics/
32 Pages. 24cm - (World Health organisation Technical Report; 510) Content notes : Introduction -- General principles of research design field studies -- Development of sampling and measurement -- The experimental approach in the field of studies -- Non- Experimental studies on etiology or intervention -- The applications field studies in public health services -- The application of fields studies in public Health services -- Data Handling and Analysis.