| healthy.net | Sexual Hormones and Reproductive Imbalances Materia Medica |
| nih.gov | National Center for Complementary and Alternative Medicine (NCCAM) |
| giovanni-maciocia.com | Giovanni Maciocia |
| spanda.com | Spanda Medical Company: Chinese Medicinal Herbs |
| orientalmedicine.com | Oriental Medicine |
| innerself.com | Medicinal Herbs in Chinese Medicine |
| herbs.org | Herb Research Foundation - Herbs And Herbal Medicine For Health |
| healthatoz.com | HealthAtoZ |
| tcminternational.com | International College of Traditional Chinese Medicine |
| orientalmed.ac.uk | International College of Oriental Medicine |
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