One quick note before the long weekend . . . be careful about the difference between Average and Median: In most cases, in ALS papers, average will be higher than median . . . because slow regressors can pull these datums up more forcefully than rapid regressors can pull them down. Median is the 50:50 point . . . a randomly chosen patient 'ordinarily' has a fifty percent chance of making the median . . . in most cases, at this time, the chances of a randomly chosen patient making the Average is significantly less than making the Median (less than fifty percent).

Happy Valentines and President's day weekend.