Deterioration may be caused by acid.Logical formLearned from2 sentences. Maintenance of an environment may slow_down processes of deterioration.Logical formLearned from2 sentences. Deterioration can be due to time.Logical formLearned from2 sentences. Challenges may be posed by a deterioration of (research resources).Logical formLearned from2 sentences. A videotape may be played without deterioration.Logical formLearned from2 sentences. An artwork may undergo a deterioration.Logical formLearned from2 sentences. Native languages may undergo a deterioration.Logical formLearned from2 sentences. Materials can be due to (media deterioration).Logical formLearned from2 sentences. Acetate may undergo a deterioration.Logical formLearned from2 sentences. (Library documents) may undergo a deterioration.Logical formLearned from2 sentences. Organic materials can be subject to deterioration.Logical formLearned from2 sentences. Patterns of course/development may include deterioration.Logical formLearned from2 sentences. Patient care may undergo a deterioration.Logical formLearned from2 sentences. Studies can be on a deterioration of parameters.Logical formLearned from2 sentences. Alcohol can be evidence of deterioration.Logical formLearned from2 sentences.