The direct source for the information presented on this website was the English version of Wikipedia.

Wikipedia itself cited the following sources:

IUPAC-IUBMB Joint Commission on Biochemical Nomenclature. Nomenclature and Symbolism for Amino Acids and Peptides. Recommendations on Organic & Biochemical Nomenclature, Symbols & Terminology etc.

L-Arginine Supplements Nitric Oxide Scientific Studies Food Sources.

Enzymes of arginine metabolism J Nutr. 2004 Oct; 134(10 Suppl): 2743S-2747S; PMID 15465778 Free text Stanislavov, R. and Nikolova. 2003. Treatment of Erectile Dysfunction with Pycnogenol and L-arginine. Journal of Sex and Marital Therapy, 29(3): 207 – 213.

Lebret, T., Hervéa, J. M., Gornyb, P., Worcelc, M. and Botto, H. 2002. Efficacy and Safety of a Novel Combination of L-Arginine Glutamate and Yohimbine Hydrochloride: A New Oral Therapy for Erectile Dysfunction. European Urology 41(6): 608-613.

Medical College of Georgia. "Diabetes Makes It Hard For Blood Vessels To Relax." ScienceDaily 1 February 2008.

Arginine Therapy in Acute Myocardial Infarction JAMA. 2006 Jan; Vol.295 #1: 58-64; PMID 16391217 Abstract This study has been discussed in some detail in : "Reverse Heart Disease Now" by Stephen T Sinatra MD and James C Roberts MD, publ. Wiley 2006 ISBN 0-471-74704-1 at pp 111-113.

Alba-Roth J, Müller O, Schopohl J, von Werder K (1988). "Arginine stimulates growth hormone secretion by suppressing endogenous somatostatin secretion". J Clin Endocrinol Metab 67 (6): 1186-9. PMID 2903866.