1. Anisylidene acetone;Opdyke;Food and Cosmetics Toxicology,1975
2. Hydroabietyl alcohol;Opdyke;Food and Cosmetics Toxicology,1974
3. Benzylidene acetone;Opdyke;Food and Cosmetics Toxicology,1973
4. Citral;Opdyke;Food and Cosmetics Toxicology,1979
5. Cinnamic aldehyde;Opdyke;Food and Cosmetics Toxicology,1979