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Zayas, Gustavo, Juan C. Valle, Mauricio Alonso, Henry Alfaro, Daniel Vega, Gloria Bonilla, Miguel Reyes, and Malcolm King. A New Paradigm in Respiratory Hygiene: Modulating Respiratory Secretions to Contain Cough Bioaerosol Without Affecting Mucus Clearance. BioMed Central, 2007.

Zayas, Gustavo, et al. A New Paradigm in Respiratory Hygiene: Modulating Respiratory Secretions to Contain Cough Bioaerosol Without Affecting Mucus Clearance. BioMed Central, 2007.