Progression can be within some years.Logical formLearned from2 sentences. Teens can be at a risk of (smoking progression).Logical formLearned from2 sentences. (Marijuana use) may be associated with risk of progression.Logical formLearned from2 sentences. Diagnoes may be associated with progression to abuse/dependence.Logical formLearned from2 sentences. (Ecstasy use) may undergo a progression.Logical formLearned from2 sentences. A risk can be for progression to addiction.Logical formLearned from2 sentences. Progression can be from (drug exposure) to developping addiction.Logical formLearned from2 sentences. A progression can be to (drug dependence).Logical formLearned from2 sentences. (Or environment) may play in a progression.Logical formLearned from2 sentences. A progression can be from smoking.Logical formLearned from2 sentences. A gene may be associated with progression to (nicotine addiction).Logical formLearned from2 sentences. Progression can be to (nicotine addiction).Logical formLearned from2 sentences. A progression may hold for a population.Logical formLearned from2 sentences. Rates of (disease progression) can be rapid.Logical formLearned from2 sentences. Spinal-cord injury may undergo a progression.Logical formLearned from2 sentences.