Lucas A, Wilson M, Sings HL, Pugh S, Jones D, Farkouh R, Gessner B, Wasserman M. Estimating the vaccine effectiveness against serotype 3 for the 13-valent pneumococcal conjugate vaccine: a dynamic modeling approach. International journal of infectious diseases and therapy. 2019 Dec;4(4):56-66. doi: 10.11648/j.ijidt.20190404.12
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