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Meyers JL, Parasuraman S, Bell K, Graham JP, Candrilli SD. The high-cost, type 2 diabetes mellitus patient: an analysis of managed care administrative data. Arch Public Health. 2014 Feb 27;72(1):6.
Chintakayala PK, Maitra B. Modeling generalized cost of travel and its application for improvement of taxies in Kolkata. J Urban Plan Dev. 2010 Mar;136(1).