THE JOURNAL OF CUTANEOUS DISEASES INCLUDING SYPHILIS
By JAMES C. JOHNSTON, A.B., M.D.
Unna’s Theory of Origin: Briefly his contention is as follows: Studying the nævi of infants and children—i.e., in an early stage—he describes a process of downgrowth and snaring off by connective tissue of the epithelium.
MELANOMA. Arch Dermatol. 2005;141(1):12. doi:10.1001/archderm.141.1.12