Armitage, P. Statistical methods in medical research / P. Armitage, G. Berry, J. N. S. Matthews - 4th ed. - Malden, MA : Blackwell Science, 2002. - xi, 817 : ill. ; 25 cm. Includes bibliographical references and indexes. ISBN: 0632052570 9780632052578 Subjects--Topical Terms: Medicine--Research--Statistical methodsBiometry. Dewey Class. No.: 610.727 National Library of Medicine Call No.: WA 950 / A733s 2001