[1a. Lovelock, J, E., Zlatkis, A., and Becker, R. S.: Nature 1.93 (1.962) 540. ]Search in Google Scholar
[1b. Lijinsky, W.: 1.5th Mid-American Symposium on Spectroscopy, June 1.-4, 1.964, Chicago, Illinois.]Search in Google Scholar
[2. Elmenhorst, H., and Reckzeh, G.: Beiträge zur Tabakforschung 2 (1.964) 1.80.]Search in Google Scholar
[3. Wynder, E. L., and Hoffmann, D.: Deutsche Medizinische Wochenschrift 88 (1.963) 623.10.1055/s-0028-111198914002123]Search in Google Scholar
[4. Scherbak, M., Rice, R. L., and DeSouza, J. E.: 1.7th Tobacco Chemists' Research Conference, September 22.:..25, 1963, Montreal, Quebec.]Search in Google Scholar
[5. Smoking and Health, Report of the Advisory Committee to the Surgeon General of the Public Health Service, P. H. S. Publication No. 1.1.03, pp. 56-57. ]Search in Google Scholar