Baseline Phase I: 1 week During Visit 1, final eligibility determination and informed consent are obtained from the participant by trained study staff, and the usual discussion of procedures, risks, side effects, confidentiality, voluntary participation, and right to refuse participation without prejudice is explained to the participant
Mechanics: This non-mechanical device is designed for easy and consistent use, with no need for adjustments or variable settings
Results A total of 56% of 184 schools, including 48 of 98 junior high schools (response rate: 49%) and 55 of 86 high schools (response rate: 64%) took part in the survey
While he was busy staying away from alcohol, he was smoking several packs a day
Use child-resistant lighters and match containers