Butler, M. G., Bittel, D. C., Kibiryeva, N., Talebizadeh, Z., & Thompson, T. (2004). Behavioral Differences Among Subjects With Prader-Willi Syndrome and Type I or Type II Deletion and Maternal Disomy. Pediatrics.

Butler, Merlin G., Douglas C. Bittel, Nataliya Kibiryeva, Zohreh Talebizadeh, ja Travis Thompson. "Behavioral Differences Among Subjects With Prader-Willi Syndrome and Type I or Type II Deletion and Maternal Disomy." Pediatrics 2004.

Butler, Merlin G., et al. "Behavioral Differences Among Subjects With Prader-Willi Syndrome and Type I or Type II Deletion and Maternal Disomy." Pediatrics 2004.