RT Journal Article SR Electronic T1 Hyperpigmentation and hypotension JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 308 OP 312 DO 10.3949/ccjm.79a.10187 VO 79 IS 5 A1 Shaheen, Khaldoon A1 Alraiyes, Abdul Hamid A1 Baibars, Motaz A1 Alraies, M. Chadi YR 2012 UL http://www.ccjm.org/content/79/5/308.abstract AB