41 Schmelz, Merrill 1989, Futerman, and Lati.
42 Motta, S. et al., Ceramide ComDositions of the Psoratic Scale, Biochimica et Biophysics Acta, 1182: pp. 147-151 (1993)
43 Imokawa, Lee, Goldstein, Lati and Chamlin.
44 Ennagram’s Vegetal Ceramides: LD-50 Study, dated July 1999; and Ennagram Report dated November 1997.