TY - BOOK AU - Hulley,Stephen B. TI - Designing clinical research SN - 9780781782104 AV - R853.C55 D47 2007 U1 - 610.72 22 PY - 2007/// CY - Philadelphia, PA PB - Lippincott Williams & Wilkins KW - Clinical trials KW - Local KW - Research Design KW - Epidemiologic methods KW - Epidemiology KW - Research KW - Methodology KW - Medicine N1 - Includes bibliographical references and index UR - http://www.loc.gov/catdir/toc/ecip0619/2006028271.html UR - http://www.loc.gov/catdir/enhancements/fy0712/2006028271-d.html ER -