Effect of the Oral Intake of Astaxanthin on Semen Parameters in Patients with Oligo-Astheno-Teratozoospermia: A Randomized Double-Blind Placebo-Controlled Trial: Oral intake of astaxanthin and semen parameters in infertile patients . Radiol Oncol. 2021;55(1):97-105. Accessed July 29, 2026. https://www.ojstest.computing.si/index.php/ro/article/view/3533