Increases can be in (greenhouse gas concentrations).Logical formLearned from31 sentences. (Mercury concentrations) can be high.Logical formLearned from31 sentences. (Teaching hospitals) may undergo concentration.Logical formLearned from31 sentences. Concentration can be horizontal.Logical formLearned from31 sentences. Antibodies may undergo concentrations.Logical formLearned from31 sentences. Concentrations can be in an environment.Logical formLearned from31 sentences. Cyanide may undergo concentration.Logical formLearned from31 sentences. Periods can be constituted-of-or-filled-with concentration.Logical formLearned from31 sentences. Manganese may undergo concentrations.Logical formLearned from31 sentences. Concentrations can be organic.Logical formLearned from31 sentences. Concentration can be in an industry.Logical formLearned from31 sentences. Concentration can be observed.Logical formLearned from31 sentences. Substances may undergo concentration.Logical formLearned from31 sentences. Concentration can be bacterial.Logical formLearned from31 sentences. Phosphorus may undergo concentration.Logical formLearned from30 sentences.