Title: The African-American heart surgery pioneer
Description: "Learn about Vivien Thomas and the clamp he invented to help stop bleeding in a very small space"--
Subjects: Surgeons, Surgery, Juvenile literature, Cardiovascular system, Biography, Physicians, juvenile literature, United states, biography, United states, biography, juvenile literature, Cardiovascular system, juvenile literature
Places: Maryland
People: Vivien T. Thomas (1910-1985)