Studies of the control of acute respiratory diseases among naval recruits; the epidemiological pattern and the effect of ultraviolet irradiation during the winter of 1946-1947.
D006801:Humans; D012120:Respiration Disorders; D012137:Respiratory System; D012140:Respiratory Tract Diseases; D012621:Seasons; D014466:Ultraviolet Rays / Q000628:therapy*; D014467:Ultraviolet Therapy
RESPIRATORY TRACT/diseases; ULTRAVIOLET RAYS/therapy