Testosterone therapy over 60 months improves aging male symptoms scores in all men with adult-onset testosterone deficiency oleh Karim Sultan Haider, Michael Zitzmann, Pravinath Ramachandran, Carola S. König, Geoffrey Hackett, Ahmad Haider, Farid Saad, Pieter Desnerck, Richard Strange, Amar Mann, Sudarshan Ramachandran