Dwivedi, Dhananjay, and Hitesh Kumar Tourani. “A Systematic Review Comparing Different Sperm Retrieval Techniques for Non-Obstructive Azoospermia”. Journal of Neonatal Surgery 14, no. 17S (April 24, 2025): 348–355. Accessed October 22, 2025. https://www.jneonatalsurg.com/index.php/jns/article/view/4536.