1. Medicinal plants in China;The Institute of Chinese Materia Medica, China Academy of Traditional Chinese Medicine,1989
2. A study on the practice of self-medication in Hong Kong;Lam;Hong Kong Practitioner,1989
3. Hospital admissions due to adverse reactions to Chinese herbal medicines;Chan;J Trop Med Hyg,1992
4. Adverse reactions to herbal and other unorthodox medicines;Penn,1986
5. Toxicological outlook on the quality assurance of herbal remedies;De Smet,1992