title: [The mystery about the venous valve].
authors.affiliation: olav.thulesius@telia.com
authors.forename: Olav
authors.initials: O
authors.lastname: Thulesius
mesh_terms: D001775:Blood Circulation / Q000502:physiology*; D004739:England; D006405:Hematology / Q000266:history*; D049669:History, 16th Century; D049670:History, 17th Century; D006801:Humans; D008512:Medicine in the Arts; D010820:Physicians / Q000266:history; D014680:Veins / Q000033:anatomy & histology / Q000502:physiology*