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Nitza Margarita Cintrón was born on August 17, 1950 in San Juan, Puerto Rico.

She earned her bachelor's degree in biology at the University of Puerto and was then accepted into the biochemistry and molecular biology training program offered by Johns Hopkins University School of Medicine. In 1978 she was awarded her Ph.D. She answered a NASA advertisement for the first Mission Specialist positions in the Astronaut Corps, but was not accepted due to her poor eyesight. Yet NASA was still impressed, and offered her a position with them as a scientist.

Cintrón was the originator of the Biochemistry Laboratory at the Johnson Space Center. And from 1979 to 1985, she was also project scientist for the Space Lab 2 mission which was launched by the Space Shuttle Challenger in 1985.

After many years of service at NASA, she was sponsored by NASA after she was accepted as a student by the University of Texas Medical Branch in Galveston. She graduated in 1995 with a M.D. degree, and is currently a board-certified specialist in internal medicine.

Among the positions held by Cintrón at NASA are "Chief of the Biomedical Operations and Research Branch in the Medical Science Division" and "Managing Director of the Life Sciences Research Laboratories" in support of medical operations. In 2004 she was named "Chief of NASA's (JSC) Space Medicine and Health Care Systems Office", position which she currently holds.

[Source: Wikipedia]
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Mona Evans
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