Problems in measuring impact of smoking prevention interventions for very young children.
Kishchuk
N
N
Community Health Department, Montreal General Hospital, Quebec, Canada.
Masson
P
P
O'Loughlin
J
J
Sacks-Silver
G
G
D000367:Age Factors; D001294:Attitude to Health; D002648:Child; D002657:Child Development; D002675:Child, Preschool; D006266:Health Education / Q000592:standards*; D006801:Humans; D015397:Program Evaluation / Q000379:methods*; D011792:Quebec; D000074606:Smoking Prevention