Raymond Mark Joseph. (2018). Total testosterone and asymmetric dimethylarginine: Association of demographic, clinical and lifestyle factors with the severity of erectile dysfunction.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Raymond Mark Joseph. Total Testosterone and Asymmetric Dimethylarginine: Association of Demographic, Clinical and Lifestyle Factors with the Severity of Erectile Dysfunction. 2018.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Raymond Mark Joseph. Total Testosterone and Asymmetric Dimethylarginine: Association of Demographic, Clinical and Lifestyle Factors with the Severity of Erectile Dysfunction. 2018.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.