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Authors
- Ohio. State Board of Health, compiler, issuing body.1
- Ohio. State Board of Health, compiler.1
- Ohio. State Board of Health.1
- Ohio. State Board of Medical Examiners, author.1
- Ohlemann, F. W. Max, author1
- Ohlmacher, A. P. (Albert P.) author6
- Ohlmacher, A. P. (Albert P.), author1
- Ohmann-Dumesnil, A. H. (Amant Henry), 1857-19192
- Ohmann-Dumesnil, A. H. (Amant Henry), 1857-1919 author65
- Ohmann-Dumesnil, A. H. (Amant Henry), 1857-1919, author2
- Okie, A. Howard (Abraham Howard)1
- Olaguíbel, Manuel de, 1845-1900 author1
- Old Smoker, 1822-1891 author1
- Oldberg, Oscar, 1846-19131
- Oldberg, Oscar, 1846-1913 author4
- Oldshue, L. (Lincoln), 1820-18861
- Oleson, Charles W. (Charles Wilmot), -19061
- Oliva, Leonardo, 1814-18721
- Oliva, Leonardo, 1814-1872 author1
- Olivares, Ambrosio R.1