Walker, Glenn A. Common statistical methods for clinical research with SAS examples / Glenn A. Walker, Jack Shostak. - 3rd ed. - Cary, NC : SAS Institute Inc., c2010. - xiv, 536 p. : ill. ; 28 cm. Includes bibliographical references (p. [517]-520) and index. ISBN: 9781607642282 LCCN: 2011287080 Subjects--Uniform Titles: SAS (Computer file) Subjects--Topical Terms: Medicine--Research--Statistical methods. LC Class. No.: R853.S7 / W35 2010