1. On the analysis of simple crossovers with unequal numbers of replicates;Chassan;Biometrics,1964
2. The two-period change-over design and its use in clinical trials;Grizzle;Biometrics,1965
3. Biometric and Epidemiological Methodology Advisory Committee to the FDA: Crossover designs in clinical trials of new drugs,1976
4. The two-period crossover clinical trial;Hills;Br J Clin Pharmacol,1979
5. The crossover experiment for clinical trials;Brown;Biometrics,1980