RT Journal Article SR Electronic T1 Keloid Formation From Levonorgestrel Implant (Norplant System) Insertion JF The Journal of the American Board of Family Practice JO J Am Board Fam Med FD American Board of Family Medicine SP 152 OP 154 DO 10.3122/jabfm.7.2.152 VO 7 IS 2 A1 Nuovo, James A1 Sweha, Amir YR 1994 UL http://www.jabfm.org/content/7/2/152.abstract AB