Zhang, Aiqiao, et al. “Association of Polymorphisms in Estrogen Receptors With Non-Obstructive Azoospermia and Severe Secretory Oligozoospermia:a Meta-Analysis”. Urology Journal, vol. 22, no. 03, Sept. 2025, pp. 123-31, doi:10.22037/uj.v21i.8118.