The design and analysis of sequential clinical trials / John Whitehead. Whitehead, John, 1950- Clinical trials. Research design. Mathematics. Clinical trials Methods. R853.M3 W48 1983 615.7 19 WHD Includes bibliographical references and index. Chichester : Ellis Horwood ; New York : Halsted Press, c1983. c1983. 1983 Text 272 p. : eng Ellis Horwood series in mathematics and its applications