TY - BOOK AU - Crombie,Ian K. TI - The pocket guide to critical appraisal: a handbook for health care professionals SN - 978 0 7279 1099 8 AV - R118.6 .C76 1996 U1 - 362.1072 20 PY - 1996///, 2009 CY - London PB - BMJ Pub. Group KW - Medicine KW - Research KW - Evaluation KW - Medical care surveys KW - Research Design KW - Handbooks KW - Case-Control Studies KW - Clinical Trials KW - Cohort Studies KW - Primary health services N1 - Includes index ER -