P. 39: Should be "Sample size requirements for CRTs are discussed in more detail in Chapter 7."


Reference on P. 372: Should be "Greene, E. J. 2017. A SAS macro for covariate-constrained randomization of general cluster-randomized and unstratified designs. Journal of Statistical Software  77: Code Snippet 1."

   (mistake made by the publisher, when the reference          became available just before the book went to press)