Grieger KD, Sayes C, Hendron CO, Rothrock G, Mansfield C, Jayanty RKM, Ensor D. Finding the key to responsible nanomaterial development. Ehs Today: The Magazine For Environment, Health And Safety Leaders. 2013 Dec 6.
Estrada CA, Unterborn JN, Price J, Thompson D, Gibson L. Judging the effectiveness of clinical pathways for pneumonia: the role of risk adjustment. Eff Clin Pract. 2000 Sep 1;3(5):221-8.
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