TY - BOOK AU - Petrie,Aviva AU - Sabin,Caroline TI - Medical statistics at a glance SN - 0632050756 (pbk.) U1 - 610/.7/27 21 PY - 2000/// CY - Oxford, Malden, MA PB - Blackwell Science KW - Medical statistics N1 - Includes bibliographical references and index ER -