Efficacy and safety of on-demand dapoxetine combined with phosphodiesterase-5 inhibitor compared to monotherapy dapoxetine as a treatment of premature ejaculation without erectile dysfunction: a systematic review and meta-analysis. Arch Ital Urol Androl [Internet]. 2025 Sep. 30 [cited 2026 Apr. 29];97(3). Available from: https://www.pagepressjournals.org/aiua/article/view/14117