Grandmothers may be interviewed.Logical formLearned from2 sentences. (Cocaine abusers) may be interviewed at intake.Logical formLearned from2 sentences. Participants may be interviewed about (risk behaviors).Logical formLearned from2 sentences. A (metropolitan area) may be interviewed between a month.Logical formLearned from2 sentences. A sample of some youths may be interviewed about factors.Logical formLearned from2 sentences. A (community sample) of some adolescents may be interviewed in homes by interviewers.Logical formLearned from2 sentences. A second may be interviewed.Logical formLearned from2 sentences. Women may be interviewed about a (substance use).Logical formLearned from2 sentences. Children may be interviewed at intervals.Logical formLearned from2 sentences. Caretakers may be interviewed on knowledge of a policy.Logical formLearned from2 sentences. Researcher may interview teens.Logical formLearned from2 sentences. A doctor may interview some pairs.Logical formLearned from2 sentences. Investigators may interview some pairs some times.Logical formLearned from2 sentences. A doctor may interview some 10-year-olds.Logical formLearned from2 sentences. A female may interview some males.Logical formLearned from2 sentences.