1. The past 1000 years of Chinese medicine
Prof Paul U Unschuld, MPH 
The Lancet 
Volume 354, (December 1999)
DOI: /S (99)
Copyright © 1999 Elsevier Ltd Terms and Conditions

2. The Lancet 1999 354, DOI: (10.1016/S0140-6736(99)90352-5)
Copyright © 1999 Elsevier Ltd Terms and Conditions

3. A western trader presents a Chinese with ainaxiang leaves (Blumea balsamifera DC)
From a Chinese manuscript of AD 1505.
The Lancet  , DOI: ( /S (99) )
Copyright © 1999 Elsevier Ltd Terms and Conditions