@book{250442,
	author = {Chow, Shein-Chung. and Chang, Mark },
	title = {Adaptive design methods in clinical trials / },
	publisher = {CRC Press, },
	year = {2012.},
	series = {Chapman & Hall/CRC biostatistics series},
	address = {Boca Raton : },
	edition = {2nd ed.},
	note = {Includes index.}
}
