KUMAR SINGH, M.; BHATIA, K.; TOBIN, R.; WAINDESKAR, V.; KUMAR, A.; SHARMA, P. To study the level of congestion in Pre anesthetic Check up (PAC) clinic and use of Self-answering Pre-operative questionnaire to decongest it. International Journal of Medical Research and Review, v. 7, n. 1, p. 8-12, 28 Feb. 2019.