Ledbetter D.H. et al. 1981
Ledbetter D.H., Riccardi V.M., Airhart S.D., Strobel R.J., Keenan B.S., and Crawford J. D., 1981. Deletions of chromosome 15 as a cause of the Prader-Willi syndrome. N. Engl. J. Med. 304: 325-329.
Ledbetter D.H., Riccardi V.M., Airhart S.D., Strobel R.J., Keenan B.S., and Crawford J. D., 1981. Deletions of chromosome 15 as a cause of the Prader-Willi syndrome. N. Engl. J. Med. 304: 325-329.
