| Smith, Theobald | <person> U.S. Pathologist, 1859-1934. See: Theobald Smith's phenomenon. (05 Mar 2000) |
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| Smith, William | <person> 20th century U.S. Physician. See: Smith-Riley syndrome. (05 Mar 2000) |
| Theobald Smith | See: Smith. (05 Mar 2000) |
| Theobald Smith's phenomenon | A phenomenon observed in guinea pigs that had survived use for diphtheria antitoxin standardization, the animals having been rendered highly susceptible to subsequent inoculation of horse serum. (05 Mar 2000) |