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Gupta A, Jain AK.Gupta A, et al. Among authors: jain ak.Indian J Otolaryngol Head Neck Surg. 1997 Apr;49(2):140-1. doi: 10.1007/BF03023792.Indian J Otolaryngol Head Neck Surg. 1997.PMID: 23119279Free PMC article.