there's something called a lung allocation score, which basically measures how sick someone is with this type of condition. on a scale from zero to 100, sarah is at a 78, very sick people usually rate in the high 50s. this is the first time sarah --. if not number one, she's number two, for the reason her blood type. before this ruling, she was number 100, maybe. i mean, since we talk about a difference, we have no chance, no chance of getting lungs and the odds of sarah dying were very high. now we have a chance.