1. Insuffisance veineuse chronique: aspects cliniques;Priollet;Presse Méd,1994
2. Varicose vein clinics: modelling the effects of seasonal variation in referrals;Cook;J R Coll Surg Edinb,1997
3. Die saisonabhangigkeit des ulcus cruris varicosum;Heede;Dtsch Gesundhwesen,1966
4. Die saisonale periodik des venosen ulcus cruris;Heede;Dermatol Monatsschr,1985
5. Revision of the CEAP classification for chronic venous disorders: consensus statement;Eklof;J Vasc Surg,2004