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Subject
- Kredel, Frederick E. (Frederick Evert), 1903-19614
- Animals--Guyana--Photographs1
- Bodies of water--Guyana--Photographs1
- Bradypus tridactylus--Guyana--Research1
- Certification1
- Expeditions1
- Guyana--Description and travel1
- Guyana--Research1
- Internship and Residency1
- Kredel, Frederick E. (Frederick Evert), 1903-1961--Correspondence1
- Kredel, Frederick E. (Frederick Evert), 1903-1962--Death and burial1
- Licensure, Medical1
- Medicine--Bibliography1
- Medicine--Societies, etc.--Membership1
- Medicine--bibliography1
- Physicians--Correspondence1
- Plants--Guyana--Photographs1
- Research1
- Scrapbooks--Guyana1
- Sloths--Guyana--Research1