Chu A, Khan AM, Tu JV. The potential use of big data in cardiovascular research. Univ Tor Med J. 2017 Jul 10;94(3):25-6.
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