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Subjects
- Books60
- Pamphlets36
- National Library of Medicine (U.S.)16
- Orthoptics -- instrumentation16
- Strabismus -- diagnosis15
- Emotions -- physiology12
- Periodicals as Topic11
- Facial Expression9
- Biological Evolution8
- Sex Characteristics8
- Military Personnel7
- Genetic Variation6
- Libraries, Medical6
- Library of the Surgeon-General's Office (U.S.)6
- Army Medical Library (U.S.)5
- Birds5
- Cartoons as Topic5
- Dogs5
- Motion Pictures as Topic5
- United States5