A line drawing of a heart from the nursery manual Behold Your Little Ones (2008), page 31.
The Changing Online Language of Hearts - The New York Times
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998,917 Heart Stock Photos, High-Res Pictures, and Images - Getty
Understanding Your Heart and How it Functions
Structure and Function of the Heart
The 11 Best Places to Find Free Heart Clip Art Images
February is American Heart Month - Care Resource Community Health
Heart Images - Free Download on Freepik
Genetics may explain rare heart inflammation in some young people
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