Erectile dysfunction amongst men with diabetes in Malaysia: perception and reality, a cross-sectional study - S. Ahmad; M.M. Radzi; Y.S. Ting; S.M.S. Ali; C.H. Chin; Z.A. Othman; N.I.M. Tahir; O. Othman; R.A. Rashid; N.A. Aziz (Mary Ann Liebert, Inc., publishers, 2024)