00546nam a22001217a 4500020002100000082001300021100003700034245010400071260003900175300003500214500001900249650015600268  a0443061637 (pbk)  a613bABR  aAbramson, H. J.aAbramson, H. Z.  aSurvey methods in community medicinebepidemiological research programme evaluation clinical trials  aLondonbChurchill Livingstonc1999  aviii, 419 p.b: ill.c; 21 cm.  aIncludes index  aHealth surveyaCommunity medicinevInvestigation typesvConsensus methods vDoumentary methods vEpidemiological methods vSampling vValiables vIIMC