Ancient Humorism and Modern Humorism | Charles Richet, MD, Professor of Physiology, University of Paris |
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"Vocal Survival Techniques For Singers Who Abuse And Overuse Their Voices" | Ferreira, Leslie Piccolotto; de Oliveira Latorre, Maria do Rosario Dias; Pinto Giannini, Susana Pimentel; de Assis Moura Ghirardi, Ana Carolina; de Fraga e Karmann, Delmira; Silva, Eliana Egerland; Figueira, Silmara January 2010 |
Oxford English Dictionary 3rd ed | |
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"Symptoms of cough and shortness of breath among occasional young adult smokers" | National Institute of Child Health and Human Development |