Alharbi, M., Almarzouq, A. ., & Zini, A. . (2020). Sperm retrieval and intracytoplasmic sperm injection outcomes with testicular sperm aspiration in men with severe oligozoospermia and cryptozoospermia. Canadian Urological Association Journal, 15(5), E272–5. https://doi.org/10.5489/cuaj.6798