Talon B, Perez A, Yan C, Alobaidi A, Zhang KH, Schultz BG, Suda KJ, Touchette DR. Economic evaluations of clinical pharmacy services in the United States: 2011-2017. J Am Coll Clin Pharm. 2020 Jun;3(4):793-806. doi: 10.1002/jac5.1199
Rothman KJ, Glass RL, Espinal F, Velez H. Caries-free teeth in the absence of fluoride ion. J Public Health Dent. 1972;32(4):225-8. doi: 10.1111/j.1752-7325.1972.tb03977.x