Smoking habits of grade 7 children--a comparative study
Can J Public Health
.
1973 Mar;64(2):Suppl:S36-42.
Authors
G W Piper
,
W Thomas
,
F R Wake
,
V L Matthews
PMID:
4703599
No abstract available
MeSH terms
Adolescent
Child
Demography
Female
Humans
Male
Ontario
Residence Characteristics
Saskatchewan
Smoking / epidemiology*