1. 1. M. Baum, D. M. Brinkley, J. A. Dossett, K. McPherson, J. S. Patterson, R. D. Rubens, F. G. Smiddy, B. A. Stoll, A. Wilson, J. C. Lea, D. Richands, and S. H. Ellis(1983 ) Controlled trial of Tamoxifen as adjuvant agent in management of early breast cancer .Lancet257 -60 .
2. Design and analysis of randomized clinical trials requiring prolonged observation of each patient. II. Analysis and examples