In an article on grenz rays, which appeared in 1941,1 the therapy of nevus flammeus was discussed, and I reported on a series of 38 cases, treated with this modality. The total dose used in those cases was about 10,000 r. The individual doses varied between 800 and 1200 r, and a radiation of a half value of 0.02 to 0.03 mm. of alumi
KALZ F. THERAPEUTIC NOTE ON GRENZ RAY DOSAGE. AMA Arch Derm. 1955;71(4):527–528. doi:10.1001/archderm.1955.01540280103029
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