Students may enroll in cohorts.Logical formLearned from4 sentences. A cohort may be followed.Logical formLearned from4 sentences. A cohort can be well-defined.Logical formLearned from4 sentences. A cohort can be randomized.Logical formLearned from4 sentences. A cohort can be adolescent.Logical formLearned from4 sentences. Some cohorts of outpatients may be studied.Logical formLearned from4 sentences. Some cohorts can be constituted-of-or-filled-with outpatients.Logical formLearned from4 sentences. A cohort can be constituted-of-or-filled-with (drug users).Logical formLearned from4 sentences. Investigators may follow a cohort of nuns.Logical formLearned from4 sentences. A cohort can be constituted-of-or-filled-with nuns.Logical formLearned from4 sentences. Cohorts can be constituted-of-or-filled-with adults.Logical formLearned from4 sentences. Cohorts can be incoming.Logical formLearned from4 sentences. Latinoes can be a cohort of farmers.Logical formLearned from4 sentences. Households can be in a (swing cohort).Logical formLearned from4 sentences. Interviews can be with a cohort.Logical formLearned from4 sentences.