1. Austin, Texas, Texaco Chemical Company, Research and Technical Services, Texaco product brochure – Morpholine. Texaco 1986.
2. Contact Dermatitis;Fisher,1986
3. Lipophilicity of Some Substituted Morpholine Derivatives Synthesized as Potential Antinociceptive Agents
4. Contact dermatitis from pramoxine
5. Midodrin, Minaprin, Minocyclin, Trimethobenzamid, Trimethoprin, Trimetozin, Trimipramin, Tripelennamin;Kleemann,1982