History
PDGF was one of the first growth factors characterized, and has led to an understanding of the mechanism of many growth factor signaling pathways.
Read more about this topic: Platelet-derived Growth Factor
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“So in accepting the leading of the sentiments, it is not what we believe concerning the immortality of the soul, or the like, but the universal impulse to believe, that is the material circumstance, and is the principal fact in this history of the globe.”
—Ralph Waldo Emerson (1803–1882)
“A man will not need to study history to find out what is best for his own culture.”
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