Maryam Mirzakhani, Prize-Winning Mathematician, Dies At 40
Maryam Mirzakhani was the first woman to win the prestigious Fields Medal. She worked at Stanford University, which confirmed her death Saturday.
The innovative drug Ocrevus looks as if it could be a game-changer for people with MS. But it's very, very expensive. And as with any new medication, the long-term safety risks are unknown.