Borlee, I. (1978). Coffee: risk factor during pregnancy? Louvain Med., 97, 279-284.
2.
Collins, T.F., Walsh, J.J., Black, T.N. & Collins, E.V. (1981). A study of the teratogenic potential of caffeine given by oral intubation to rats. Regulatory Toxicol. &Pharmacol., 1, 355-378.
3.
Dunlop, M. & Court, J.M. (1981). Effects of maternal caffeine ingestion on neonatal growth in rats. Biol. Neonate, 39, 178-184.
4.
Elmazar, M.M., McElhatton, P.R. & Sullivan, F.M. (1982). Studies on the teratogenic effects of different oral preparations of caffeine in mice. Toxicol., 23, 57-71.
5.
Irving, G.W. (1978). Evaluation of the health aspects of caffeine as a food ingredient. Paper prepared by FASEB for the FDA, contract no. FDA 223-75-2004.
6.
Mau, G. & Netter, P. (1974). Are coffee and alcohol consumption risk factors in pregnancy? Gebortsh u Frauenheilk, 34, 1018-1022.
7.
Rosenberg, L., Mitchell, A.A., Shapiro, S. & Slone, D. (1982). Selected birth defects in relation to caffeine-containing beverages. JAMA, 247, 1429-1432.
8.
Van Den Berg, B.J. (1977). Epidemiologic observations of prematurity: effects of tobacco, coffee and alcohol. In The epidemiology of prematurity , eds D. M. Reed & F. J. Stanley, pp. 157-176. Baltimore: Urban and Schwarzenberg.
9.
Van't Hoff, W. (1982). Caffeine in pregnancy. Lancet , i, 1020.