1. Human dosed patch test;Hayakawa;Skin Research,1984
2. Skin safety evaluation of improved Simaron gel;Hayakawa;Skin Research,1986
3. Cosmetic dermatitis in 1991;Okada;Skin Research,1993
4. A case with contact dermatitis due to 1,3-butylene glycol;Fujimoto;Environ Dermatol,1994