Lee, A; Fan, LT; Gin, T; Karmakar, MK; Ngan Kee, WD (Jun 2006). “A systematic review (meta-analysis) of the accuracy of the Mallampati tests to predict the difficult airway”. Anesthesia and Analgesia102 (6): 1867–78. doi:10.1213/01.ane.0000217211.12232.55. PMID16717341.
Lee, A; Fan, LT; Gin, T; Karmakar, MK; Ngan Kee, WD (Jun 2006). “A systematic review (meta-analysis) of the accuracy of the Mallampati tests to predict the difficult airway”. Anesthesia and Analgesia102 (6): 1867–78. doi:10.1213/01.ane.0000217211.12232.55. PMID16717341.