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Start Over Subjects Breathing Exercises -- adverse effects ✖Remove constraint Subjects: Breathing Exercises -- adverse effects Subjects Diaphragm -- physiology ✖Remove constraint Subjects: Diaphragm -- physiology Titles The "abdominal method" of singing and breathing as a cause of "female weaknesses" ✖Remove constraint Titles: The "abdominal method" of singing and breathing as a cause of "female weaknesses" Copyright Public domain ✖Remove constraint Copyright: Public domain

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