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| View Original: | Guinea pig tumor sizing.jpg (2700x1800) | |||
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| Keywords: Guinea pig tumor sizing.jpg An experimental guinea pig being held by a technician Only the technician's hands and the animal are visible The technician measures the size of a reaction of the animal due to a recent injection Topics/Categories Animals Type Color Photo Source National Cancer Institute Linda Bartlett Photographer 1961 1980 Reuse Restrictions None - This image is in the public domain and can be freely reused Please credit the source and/or author listed above Linda Bartlett Photographer PD-USGov-HHS-NIH Media from National Cancer Institute Visuals Online Images uploaded by Fæ Animal testing Human hands holding cavies Experimental guinea pigs | ||||
