TY - BOOK AU - Abramson, H. J. TI - Survey methods in community medicine: epidemiological research programme evaluation clinical trials SN - 0443061637 (pbk) U1 - 613 PY - 1999/// CY - London PB - Churchill Livingston KW - Health survey KW - Community medicine KW - Investigation types KW - Consensus methods KW - Doumentary methods KW - Epidemiological methods KW - Sampling KW - Valiables KW - IIMC N1 - Includes index ER -