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2. Prospektic epidemiologische studie uber die entstehunsweise der krampfadern bei kindern und jegendichen (Bochumer Studie I und II);Schultz-Ehrenbuegh;Phlebol Proktol,1989
3. Do telangiectasias communicate with the deep venous system?;Bohler-Sommeregger;J Dermatol Surg Oncol,1992
4. The origin of reflux in incompetent blue reticular telangiectatic veins;Tretbar,1989
5. Circulation patterns in incompetent perforating veins of the calf in venous dysfunction;Bjordal,1981