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;

Risk of mayor and minor birth defects in children conceived by assisted reproductive technology (IVF/ICSI): A prospective controlled cohort study María José Sánchez Soler; Vanesa López-González; María Juliana Ballesta-Martínez; Jorge Gálvez-Pradillo; María Nicolás-Arnao; Emilio Gómez-Sánchez; Virginia Pérez-Fernández; Encarna Guillén Navarro;

Ethical and legal questions of anonymity and confidentiality in gamete donation Isolina Riaño-Galán; Carmen Martínez González; Sergio Gallego Riestra;