1. The "phantom anesthetist" of Mattoon: a field study of mass hysteria.
2. China Post, May 4, 1956.May 4China Post1956
3. China Daily News, May 4, 1956.May 4China Daily News1956
4. China Post, May 4, 1956.May 4China Post1956
5. China Daily News May 4, 1956May 4China Daily News1956