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4. The effects of protriptyline in sleep-disordered breathing. Smith PL, Haponik EF, Allen RP, Bleecker ER. Am Rev Respir Dis; 1983 Jan; 127(1):8-13. PubMed ID: 6849555 [Abstract] [Full Text] [Related]
5. L-tryptophan in the treatment of impaired respiration in sleep. Schmidt HS. Bull Eur Physiopathol Respir; 1983 Jan; 19(6):625-9. PubMed ID: 6360258 [Abstract] [Full Text] [Related]