classifications
| search classifications for: Altman, Sidney |
Biochemistry and biochemists
Geneticists, microbiologists, some biochemists
Natural history personalities, biologists, naturalists, evolutionists, museum directors, geneticists, embryologists, microscopists, cytologists, taxonomists, photographers, natural history TV presenters (excludes those working only on humans)
Canada (later - classify into provinces)
United States of America
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