Deterioration can be a complication.Logical formLearned from2 sentences. Deterioration can be variable.Logical formLearned from2 sentences. Research may relate to deterioration of an (ozone layer).Logical formLearned from2 sentences. A deterioration can be unhealthy.Logical formLearned from2 sentences. A deterioration can be in margins.Logical formLearned from2 sentences. A person may detect deterioration.Logical formLearned from2 sentences. Educators can be concerned with a deterioration of integrity.Logical formLearned from2 sentences. A strength of an acid may denote a state of deterioration.Logical formLearned from2 sentences. Some level can be constituted-of-or-filled-with deterioration.Logical formLearned from2 sentences. Factors may be associated with a deterioration of paper.Logical formLearned from2 sentences. A (deterioration rate) can be linear.Logical formLearned from2 sentences. Some (factor decrease) can be in (deterioration rate).Logical formLearned from2 sentences. A rate of deterioration may be halved.Logical formLearned from2 sentences. Rates of deterioration may be cuted in half.Logical formLearned from2 sentences. Deterioration of paper may occur by variety of mechanisms.Logical formLearned from2 sentences.