Khan, A.A. et al. 2018. RESULTS OF IRRIGATION OF MAXILLARY SINUS WITH METRONIDAZOLE AFTER ANTRAL WASHOUT IN PATIENTS WITH CHRONIC MAXILLARY SINUSITIS: Irrigation of Maxillary Sinus With Metronidazole After Antral Washout. Pakistan Armed Forces Medical Journal. 68, 2 (Apr. 2018), 241–44.