Bertola, D. R.; Sugayama, S. M. M.; Albano, L. M. J.; Chong, A. K.; Gonzalez, C. H. Noonan Syndrome: A Clinical and Genetic Study of 31 Patients . Rev. Hosp. Clín. 1999, 54 (5), 147-150. https://doi.org/10.1590/S0041-87811999000500003.