TY - BOOK AU - Senn,Stephen TI - Cross-over trials in clinical research T2 - Statistics in practice SN - 0471496537 PY - 2002/// CY - Chichester, England PB - John Wiley KW - Crossover trials N1 - Includes bibliographical references (p. 323-334) and indexes UR - http://www.loc.gov/catdir/toc/wiley023/2002028054.html ER -