Dworkin, James Paul (April 2008). “Laryngitis: Types, Causes, and Treatments”. Otolaryngologic Clinics of North America41 (2): 419–436. doi:10.1016/j.otc.2007.11.011. PMID18328379.
Dworkin, James Paul (April 2008). “Laryngitis: Types, Causes, and Treatments”. Otolaryngologic Clinics of North America41 (2): 419–436. doi:10.1016/j.otc.2007.11.011. PMID18328379.