Blood Test: Partial Thromboplastin Time (PTT)

Blood Test: Partial Thromboplastin Time (PTT)


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American Academy of Pediatrics (AAP)
The AAP is committed to the health and well-being of infants, adolescents, and young adults. The website offers news articles and tips on health for families.

National Hemophilia Foundation (NHF)
The NHF's Web site contains information on bleeding disorders such as hemophilia.

American Society of Hematology
This group provides information relating to blood, blood-forming tissues, and blood diseases.


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