Alvarez-Martin C, Ribera A, Marsal JR, Ariza-Sole A, Perez-Hoyos S, Oristrell G, Soriano-Colome T, Romaguera R, Pijoan JI, Lidon RM, Mauri J, Ferreira-Gonzalez I. Dynamics of emergency cardiovascular hospital admissions and in-hospital mortality during the COVID-19 pandemic: time series analysis and impact of socioeconomic factors. Front. Cardiovasc. Med. 2022 Apr 26. doi: 10.3389/fcvm.2022.827212
Maitra B, Dandapat S, Chintakayala P. Differences between the perceptions of captive and choice riders toward bus service attributes and the need for segmentation of bus services in urban India. J Urban Plan Dev. 2015 Jun;141(2).
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).
Glass RL, Rothman KJ, Espinal F, Velez H, Smith NJ. Prevalence of human dental caries and water-borne trace metals. Arch Oral Biol. 1973 Sep;18(9):1099-104. doi: 10.1016/0003-9969(73)90083-6