title: Venous thrombosis in relation to cigarette smoking physical activity and seasonal factors.
mesh_terms: D001777:Blood Coagulation; D001779:Blood Coagulation Factors / Q000032:analysis; D001827:Body Height; D003276:Contraceptives, Oral / Q000009:adverse effects; D006801:Humans; D005082:Physical Exertion; D010973:Platelet Adhesiveness; D011187:Posture; D011655:Pulmonary Embolism / Q000150:complications; D012621:Seasons; D012907:Smoking / Q000150:complications*; D013924:Thrombophlebitis / Q000150:complications / Q000209:etiology* / Q000401:mortality; D014887:Weather
chemical_list: D001779:Blood Coagulation Factors; D003276:Contraceptives, Oral