Occupational and environmental exposures, the association with chronic sinusitis

From the Department of Otorhinolaryngology-Head and Neck Surgery (Alkholaiwi), College of Medicine, Imam Mohmmad Ibn Saud Islamic University; from the Collage of Medicine (Almutairi, Alrajhi, Alturki, Binyousef), Imam Mohammad Ibn Saud Islamic University, Riyadh; and from Unaizah Collage of Medicine (Almutairi) Qassim University, Kingdom of Saudi Arabia.

From the Department of Otorhinolaryngology-Head and Neck Surgery (Alkholaiwi), College of Medicine, Imam Mohmmad Ibn Saud Islamic University; from the Collage of Medicine (Almutairi, Alrajhi, Alturki, Binyousef), Imam Mohammad Ibn Saud Islamic University, Riyadh; and from Unaizah Collage of Medicine (Almutairi) Qassim University, Kingdom of Saudi Arabia.

From the Department of Otorhinolaryngology-Head and Neck Surgery (Alkholaiwi), College of Medicine, Imam Mohmmad Ibn Saud Islamic University; from the Collage of Medicine (Almutairi, Alrajhi, Alturki, Binyousef), Imam Mohammad Ibn Saud Islamic University, Riyadh; and from Unaizah Collage of Medicine (Almutairi) Qassim University, Kingdom of Saudi Arabia.

From the Department of Otorhinolaryngology-Head and Neck Surgery (Alkholaiwi), College of Medicine, Imam Mohmmad Ibn Saud Islamic University; from the Collage of Medicine (Almutairi, Alrajhi, Alturki, Binyousef), Imam Mohammad Ibn Saud Islamic University, Riyadh; and from Unaizah Collage of Medicine (Almutairi) Qassim University, Kingdom of Saudi Arabia.

From the Department of Otorhinolaryngology-Head and Neck Surgery (Alkholaiwi), College of Medicine, Imam Mohmmad Ibn Saud Islamic University; from the Collage of Medicine (Almutairi, Alrajhi, Alturki, Binyousef), Imam Mohammad Ibn Saud Islamic University, Riyadh; and from Unaizah Collage of Medicine (Almutairi) Qassim University, Kingdom of Saudi Arabia.

From the Department of Otorhinolaryngology-Head and Neck Surgery (Alkholaiwi), College of Medicine, Imam Mohmmad Ibn Saud Islamic University; from the Collage of Medicine (Almutairi, Alrajhi, Alturki, Binyousef), Imam Mohammad Ibn Saud Islamic University, Riyadh; and from Unaizah Collage of Medicine (Almutairi) Qassim University, Kingdom of Saudi Arabia.