A respiratory illness may undergo complications.Logical formLearned from1 sentences. Travelers can be with respiratory (system disorders).Logical formLearned from1 sentences. Sources may pertain-to a respiratory illness.Logical formLearned from1 sentences. Dust may cause a respiratory illness.Logical formLearned from1 sentences. Respiratory illness can be due to particles.Logical formLearned from1 sentences. (Emergency room visits) can be respiratory.Logical formLearned from1 sentences. A (cell damage) can be respiratory.Logical formLearned from1 sentences. Cough may be applied to an infectious disease of a respiratory tract.Logical formLearned from1 sentences. Viruses may enter through a respiratory tract.Logical formLearned from1 sentences. Viruses may infect through a respiratory tract.Logical formLearned from1 sentences. Mucous tissues may pertain-to a respiratory tract.Logical formLearned from1 sentences. A respiratory tract can be in a neck.Logical formLearned from1 sentences. Section may pertain-to a respiratory tract.Logical formLearned from1 sentences. A tongueworm may crawl_up an esophagus to a respiratory system.Logical formLearned from1 sentences. Respiratory disorders may be affected by stress.Logical formLearned from1 sentences.