89.Lee SC, Park SW, Kim DK, Lee SH, Hong KP. Iron supplementation inhibits cough associated with ACE inhibitors. Hypertension. 2001 Aug;38(2):166-70. http://www.ncbi.nlm.nih.gov/pubmed/11509470
90.Bhalla P, Singh NP, Ravi K. Attenuation of angiotensin converting enzyme inhibitor induced cough by iron supplementation: role of nitric oxide. J Renin Angiotensin Aldos-terone Syst. 2011 Dec;12(4):491-7. http://www.ncbi.nlm.nih.gov/pubmed/21421658
91.Scheer FA, Morris CJ, Garcia JI, Smales C, Kelly EE, Marks J, Malhotra A, Shea SA. Repeated melatonin supplementation improves sleep in hypertensive patients treated with beta-blockers: a randomized controlled trial. Sleep. 2012 Oct 1;35(10):1395-402. http://www.ncbi.nlm.nih.gov/pubmed/23024438