Armitage, P. Statistical methods in medical research / P. Armitage, Geoffrey Berry, J.N.S. Matthews. - 4th ed. - New Delhi : Wiley India, 2017 - xi, 817 p. ; 25 cm. Includes bibliographical references and index. ISBN: 9788126564811 (pbk.) Subjects--Topical Terms: Medicine--Research--Statistical methods.Biometry. Dewey Class. No.: 610.72 ARM