title: Rudimentary/elementary.
authors.forename: A Bernard
authors.initials: AB
authors.lastname: Ackerman
authors.forename: Joan M
authors.initials: JM
authors.lastname: Mones
mesh_terms: D003937:Diagnosis, Differential; D006801:Humans; D008207:Lymphatic Metastasis / Q000473:pathology; D008545:Melanoma / Q000145:classification / Q000175:diagnosis* / Q000473:pathology