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Dr. Subha Raman, a cardiologist at Indiana University, said similar registries face a lot of regulatory oversight.

One of the young men, Subha Rai, watches the body of his uncle leave, and he fights back tears.

"One third of our traffic today comes from mobile," says Subha Shetty, director of product marketing at Simply Hired, a job listing site based in Sunnyvale, California.

Subha Madhavan, a bioinformatician at Georgetown University, is building databases that will be used by FDA scientists looking to understand why people respond to drugs in different ways, and how vaccines might be linked to autoimmune disease.

Yousef's mother, Subha, was similarly unforgiving.