RT Journal Article SR Electronic T1 Longitudinal melanonychia on multiple nails induced by hydroxyurea JF BMJ Case Reports FD BMJ Publishing Group Ltd SP bcr2016218644 DO 10.1136/bcr-2016-218644 VO 2017 A1 Nguyen, Anh Ly A1 Körver, John E A1 Theunissen, Chantal C W YR 2017 UL http://casereports.bmj.com/content/2017/bcr-2016-218644.abstract AB