RT Journal Article SR Electronic T1 Neonatal facial hyperpigmentation JF BMJ Case Reports JO BMJ Case Reports FD BMJ Publishing Group Ltd SP e251127 DO 10.1136/bcr-2022-251127 VO 15 IS 6 A1 Arun Inamadar A1 Amruthvarshini Inamadar YR 2022 UL http://casereports.bmj.com/content/15/6/e251127.abstract AB