RT Journal Article SR Electronic T1 Nail pigmentation and fatigue JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 785 OP 786 DO 10.3949/ccjm.79a.12011 VO 79 IS 11 A1 Guarneri, Claudio A1 Bevelacqua, Valentina A1 Nunnari, Giuseppe YR 2012 UL http://www.ccjm.org/content/79/11/785.abstract AB