A Letter to the Editor Concerning the Meta-Analysis by Zhou et al: Meta-Analysis of the Long-Term Efficacy and Tolerance of Tadalafil Daily Compared With Tadalafil On-Demand in Treating Men With Erectile Dysfunction

• Pedro Glusman Knijnik,
• Jeruza Lavanholi Neyeloff, MD, PhD,
• Brasil Silva Neto, MD, PhD

Affiliations

Pedro Glusman Knijnik

Faculty of Medicine, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil; Corresponding Author: Pedro Glusman Knijnik, Universidade Federal do Rio Grande do Sul, Faculty of Medicine, 2400 Ramiro Barcelos, Porto Alegre, RS, 90035-002, Brazil. Tel: +5551 981784079; Fax: +5551 3359.8001

Jeruza Lavanholi Neyeloff, MD, PhD

Vice Directory, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil

Brasil Silva Neto, MD, PhD

Faculty of Medicine, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil; Urology Department, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil