1. tively. However their studies are not com- amount of drinking number of cigarettes
2. parable to ours because the former was smoked and year the subject last smoked
3. conducted on selected subjects-male ranged from 0.57 to 0.82. These high val
4. health professionals-while the latter ues of reproducibility were also comparable
5. examined the reproducibility of the ques- to those of the above studies.