Helen Huynh's youngest sister, who lives in Vietnam, is a perfect stem cell donor match. But she has been unable to acquire a visa to enter the U.S.
Agnes Constante, NBC News
Wed, 09/20/2017 - 12:46pm
Helen Huynh's youngest sister, who lives in Vietnam, is a perfect stem cell donor match. But she has been unable to acquire a visa to enter the U.S.