![](http://www.alamy.com/thumbs/6/C814763D-98D0-4DEA-8730-0E6F559B5C86/2K54267.jpg)
Endocrinologist with model of thyroid gland and blood sample in test tube, closeup
Size: 5496px × 2496px
Photo credit: © Pixel-Shot / Alamy / Afripics
License: Royalty Free
Model Released: No
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