S Annapoorani ; N Gururaj ; V Abiraami Balambigai... http://www.jpbsonline.org/article.asp?issn=0975-7406;year=2023;volume=15;issue=5;spage=86;epage=92;aulast=Annapoorani.
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Janani, C V Janani, C V (2020-2021) Comparing the Efficacy of the Modified Mallampati Grading in Supine Vs Upright Posture (With or Without Phonation) in Predicting Difficult Laryngoscopy and Intubation. Masters thesis, K.A.P. Viswanatham Government Medical College, Tiruchirapalli..
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