Williams PL and Portier CJ. Explicit solutions for constrained MLE’s in survival/sacrifice experiments. Biometrika, 1992; 79:717-29.

Scharfstein DO and Williams PL. Design of developmental toxicity studies for assessing joint effects of dose and duration. Risk Analysis, 1994; 14:1057-71.

Williams, PL. Sequential monitoring of clinical trials with multiple survival endpoints. Statistics in Medicine, 1996; 15:2341-2357.

Williams PL and Ryan LM. Design of multiple binary outcome studies with intentionally missing data. Biometrics, 1996; 52:1498-1514.

Williams PL, Currier JS, Swindells S.  Joint effects of HIV-1 RNA levels and CD4 lymphocyte count on the risk of specific opportunistic infections.  AIDS 1999; 13:1035-1044.

Betensky RA, Williams PL, and Lederman HL. A comparison of models for clustered binary outcomes:  analysis of a designed immunology experiment.  Applied Statistics 2001; 50:43-61.

Williams PL, Storm D, Montepiedra G, Nichols S, Kammerer B, Sirois P, Farley J, and Malee K for the PACTG 219C Team.  Predictors of adherence to antiretroviral medications in children and adolescents with HIV infections.  Pediatrics 2006; 118:e1745-57.

Hauser R, Sergeyev O, Korrick S, Lee MM, Revich B, Gitin E, Burns J, and Williams P. Association of blood level levels  with onset of puberty in Russian boys. Environmental Health Perspectives 2008; 116(7):976-980.

Williams PL, Van Dyke R, Eagle M, Smith D, Vincent C, Cuipak G,  Oleske J, and  Seage GR III for the PACTG 219C Team.  Association of site-specific and participant-specific factors with retention of children in a long-term pediatric HIV cohort study.  American Journal of Epidemiology 2008; 167:1375-86.

Williams PL, Wu J, Cohn SE, Koletar SL, McCutchan JA, Murphy RL, and Currier JS for the ACTG 362 Study Team.  Improvement in lipid profiles over 6 years of follow-up in adults with AIDS and immune reconstitution. HIV Medicine 2008; DOI:10.1111/j.1468-1293.2008.00685.x.