AUTHOR=Meccariello Rosaria , Fasano Silvia , Pierantoni Riccardo , Cobellis Gilda TITLE=Modulators of Hypothalamic–Pituitary–Gonadal Axis for the Control of Spermatogenesis and Sperm Quality in Vertebrates JOURNAL=Frontiers in Endocrinology VOLUME=5 YEAR=2014 URL=https://www.frontiersin.org/journals/endocrinology/articles/10.3389/fendo.2014.00135 DOI=10.3389/fendo.2014.00135 ISSN=1664-2392