1. P. Puska, P. Pietinen, A. Nissinen, J. Salonen, J. Tuomilehto, and C. Ehmholm,Diet and Prevention of Coronary Heart Disease and Cancer, Raven Press, B. Halgren et al., eds., 1986, p. 175.
2. J. K. Huttunen and J. Virtamo,Diet and Prevention of Coronary Heart Disease and Cancer, Raven Press, B. Halgren et al., eds., 1986, p. 163.
3. Y. Chiemchaisri and P. H. Philips,J. Nutr. 81, 307 (1963).
4. H. Luoma, T. Nuuja, Y. Collan, and P. Numniikoski,Calcif. Tissue Res. 20, 191 (1976).
5. R. Masironi,Bull. WHO 40, 305 (1969).