References
- The Health Consequences of Smoking . 1967 . A Public Health Service Review, publication 1696 , 1 – 227 . US Dept of Health, Education, and Welfare, Public Health Service . revised 1968
- Hammond , E . 1966 . “ Smoking in relation to the death rates of one million men and women ” . In Epidemiological Study of Cancer and Other Chronic Diseases , Edited by: Hanezel , W . 127 – 204 . Bethesda , , Md : US Dept of Health, Education, and Welfare, Public Health Service, National Cancer Institute . monograph 19
- The use of twins in epidemiological studies . Report of a WHO meeting of investigators . Acta Genet Med 15:109–128, 1966. ,
- Cederlöf , R . 1966 . The Twin Method in Epidemiological Studies on Chronic Disease , thesis : University of Stockholm .
- Twin registries in the study of chronic diseases with particular reference to the relation of smoking to cardiovascular and pulmonary diseases . 1969 . Report from a meeting in San Juan, Puerto Rico . Acta Med Scand , December to be published
- Cederlöf , R , Friberg , L and Jonsson , E . 1966 . Respiratory symptoms and “angina pectoris” in twins with reference to smoking habits: An epidemiological study with mailed questionnaire . Arch Environ Health , 13 : 726 – 737 .
- Cederlöf , R , Jonsson , E and Lundman , T . 1966 . On the validity of mailed questionnaires in diagnosing “angina pectoris” and “bronchitis.” . Arch Environ Health , 13 : 738 – 742 .
- Cederlöf , R . 1966 . Urban factor and prevalence of respiratory symptoms and “angina pectoris”: A study on 9,168 twin pairs with the aid of mailed questionnaires . Arch Environ Health , 13 : 743 – 748 .
- Cederlöf , R , Friberg , L and Jonsson , E . 1967 . Hereditary factors and “angina pectoris”: A study on 5,877 twin pairs with the aid of mailed questionnaires . Arch Environ Health , 14 : 397 – 400 .
- Cederlöf , R , Edfors , ML and Friberg , L . 1967 . Hereditary factors, “spontaneous cough” and “smoker’s cough”: A study on 7,800 twin-pairs with the aid of mailed questionnaires . Arch Environ Health , 14 : 401 – 406 .
- Cederlöf , R , Friberg , L and Hrubec , Z . 1969 . Cardiovascular and respiratory symptoms in relation to tobacco smoking: A study on American twins . Arch Environ Health , 18 : 934 – 940 .
- Cederlöf , R , Friberg , L and Hrubec , Z . 1969 . “ Background of “angina pectoris”: Relationship between smoking and other social and environmental factors ” . In Read before the First International Symposium on Twin Studies Rome
- Lundman , T . 1966 . Smoking in relation to coronaly heart disease and lung function in twins: A co-twin control study . Acta Med Scand , 180 ( suppl 455 ) : 1 – 75 .
- Cederlöf , R , Floderus , B and Friberg , L . 1969 . “ Cancer in monozygotic and dizygotic twins ” . In Read before the First International Symposium on Twin Studies Rome