Passaretta, Francesca, Lucia Centurione, Maria Antonietta Centurione, Mariangela Basile, Nicoletta Zini, and Roberta Di Pietro. 2017. “Ultrastructural Analysis Reveals Differences in the Secretory Activity Among Four Regions of Amniotic Membrane”. Italian Journal of Anatomy and Embryology 122 (1):162. https://oajournals.fupress.net/index.php/ijae/article/view/2015.