Ariyati, I., Mulyadi, R., Birowo, P., Wiweko, B. and Prihartono, J. 2018. Association between varicocele grade and semen analysis parameter. Medical Journal of Indonesia. 26, 4 (Feb. 2018), 270–6. DOI:https://doi.org/10.13181/mji.v26i4.1623.