Drop of blood
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Introduces the four main blood groups: A, AB, B, and O. Describes the makeup and function of blood in the body. Stresses that there is no distinction made between nation, creed, color, or sex in terms of blood type.
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Sources
- 16mm Filmography (legacy record) — title, year, creator, length, format, description, catalog record
Original permalink · Record added 2024-04-22 20:58:38