Berlin: Hirschwald, 1903.
46pp. (955-1000). IN: Archiv fur Klinische Chirurgie, vol. 71, 1903. Very thick 8vo, black cloth with red leather label. Berlin, 1903. First Edition. Very good. Whole volume offered entire.
Perthes was one of the first to study the inhibitory effect of x- rays on carcinoma; he was a pioneer in radiotherapy. GM 2004.