Written and translated by Liping Bu 卜丽萍,
research scholar, History of Medicine Division,
National Library of Medicine; and Professor of History, Alma College,
bulipi@alma.edu.

Editor 编审: Paul Theerman,
Head, Images and Archives
History of Medicine Division, National Library of Medicine.

Web design by Ruth Peyser.
Web implementation 网页设计与制作 by Roxanne Beatty,
Web Program Technician
History of Medicine Division, National Library of Medicine.

Acknowledgement:
Materials were photographed by Jeff Knab.
Our appreciation of support to Elizabeth Fee, Jeff Reznick,
Cheri Smith, Ginny Roth, Ming Dong 董明, and Doug Atkins.