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Authors
- Illinois Central Hospital for the Insane.1
- Illinois State Board of Health, author.4
- Indiana State Board of Health, compiler.1
- Indiana State Board of Health, issuing body.1
- Ingals, E. Fletcher (Ephraim Fletcher), 1848-19181
- Ingals, E. Fletcher (Ephraim Fletcher), 1848-1918, author1
- Iowa. State Department of Health.2