Cederlöf, R <br/><br/>
Cardiovascular and respiratory symptoms in relation to tobacco smoking. A study on American twins.  [electronic resource] 

 -  Archives of environmental health  Jun 1969 
 - 934-40 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0003-9896 
<br/><br/><label>Standard No.: </label>10.1080/00039896.1969.10665517  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Adult<br/>Aged<br/>Angina Pectoris--complications<br/>Bronchitis--complications<br/>Cardiovascular Diseases--complications<br/>Cough--complications<br/>Diseases in Twins<br/>Epidemiologic Methods<br/>Humans<br/>Middle Aged<br/>Respiratory Tract Diseases--complications<br/>Smoking--complications<br/>Sweden<br/>United States