Assessment of psychomotor development of Spanish children up to 3 years of age conceived by assisted reproductive techniques: Prospective matched cohort study María José Sánchez-Soler; Vanesa López-González; María Juliana Ballesta-Martínez; Jorge Gálvez- Pradillo; Rosario Domingo-Jiménez; Virgina Pérez-Fernández; Encarna Guillén-Navarro;

Extremely variable expressivity in Smith-Lemli-Opitz syndrome: Review of 4 cases María José Sánchez-Soler; Ana Teresa Serrano-Antón; Vanesa López-González; María Juliana Ballesta-Martínez; Encarna Guillén-Navarro;

Epidemiological difference could explain the higher infant mortality in Chile compared with Cuba Enrique Donoso; Jorge A. Carvajal;