VOL. XVI. NOVEMBER, 1898. NO. 11.
Phototherapy.—NIELS R. FINSEN (La Presse Med., No. 58, p. 17, 1898).
The author applied concentrated sun-rays and electric light to patients suffering from variola and lupus. By an ingenious arrangement he excludes the calorific waves of the sunlight, directing upon the affected surface only the blue or the violet-blue beams, which are essentially microbicidal.
JOURNAL OF CUTANEOUS AND GENITO-URINARY DISEASES. Arch Dermatol. 1998;134(11):1346. doi:10.1001/archderm.134.11.1346