"Rhinitis Versus Sinusitis in Children"(PDF). Centers for Disease Control and Prevention. Diarkibkan(PDF) daripada yang asal pada 16 February 2017. Dicapai pada 2016-12-19. Rencana ini mengandungi teks dari sumber yang berada dalam domain awam.
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"Rhinitis Versus Sinusitis in Children"(PDF). Centers for Disease Control and Prevention. Diarkibkan(PDF) daripada yang asal pada 16 February 2017. Dicapai pada 2016-12-19. Rencana ini mengandungi teks dari sumber yang berada dalam domain awam.
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