Citazione APA

Moore, R., Edwards, J., & McQuay, H. (2002). Sildenafil (Viagra) for male erectile dysfunction: A meta-analysis of clinical trial reports. BioMed Central.

Stile di citazione Chicago

Moore, RA, JE Edwards, e HJ McQuay. Sildenafil (Viagra) for Male Erectile Dysfunction: A Meta-analysis of Clinical Trial Reports. BioMed Central, 2002.

Citazione MLA

Moore, RA, JE Edwards, e HJ McQuay. Sildenafil (Viagra) for Male Erectile Dysfunction: A Meta-analysis of Clinical Trial Reports. BioMed Central, 2002.

Attenzione: Queste citazioni potrebbero non essere precise al 100%.