Lanza FL, Sontag SJ, Ciociola AA, Sykes DL, Heath AT, McSorley DJ. Ranitidine bismuth citrate plus clarithromycin: a dual therapy regimen for patients with duodenal ulcer. Helicobacter. 1998 Sep;3(3):212-21.
Graham DY, Breiter JR, Ciociola AA, Sykes DL, McSorley DJ. An alternative non-macrolide, non-imidazole treatment for curing helicobacter pylori and duodenal ulcers: ranitidine bismuth citrate plus amoxicillin. Helicobacter. 1998 Jun;3(2):125-31.
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