Low testosterone levels as an independent risk factor for mortality in male patients with COVID-19: Report of a Single-Center Cohort Study in Mexico Ana Lilia Peralta-Amaro; Emily Itzel Pecero-García; José Guadalupe Valadez-Calderón; Julio César Ramírez-Ventura; Luis Alonso Coria-Moctezuma; Jaime Enrique Hernández-Utrera;

Relationship between testicular histopathology and the success of testicular sperm extraction in patients with non-mosaic Klinefelter syndrome Cem Yücel; Mehmet Zeynel Keskin; Can Kose; Ulku Kucuk; Yusuf Ozlem Ilbey; Zafer Kozacio¿lu;

Therapeutic potential of testosterone on sperm parameters and chromatin status in fresh and thawed normo and asthenozoospermic samples Masoomeh Mohammadzadeh; Fateme Montazeri; Jafar Poodineh; Mahboubeh Vatanparast; Elham Rahmanian Koshkaki; Saeed Ghasemi Esmailabad; Fatemeh Mohseni; Ali Reza Talebi;