John M. Opitz

A comprehensive scoring system for evaluating Noonan syndrome.

L. Farkas, R. Rowe, R. B. Ross, 1981, American journal of medical genetics.

Cockayne syndrome with early onset of manifestations.

B. Burton, D. B. Moyer, P. Marquis, 1982, American journal of medical genetics.

PTPN11 mutations are not responsible for the Cardiofaciocutaneous (CFC) syndrome

J. Opitz, D. Brunoni, M. Zollino, 2003, European Journal of Human Genetics.