Bắc NH, Thắng NC. Validation of the vietnamese version of iief - 5 and its applicability in diagnosing erectile dysfunction. TCNCYH [Internet]. 2022Apr.30 [cited 2026Nov.8];152(4):86-94. Available from: https://tapchinghiencuuyhoc.vn/index.php/tcncyh/article/view/739