cohort your patients where the most experience is. in some ways it's just been natural. our hospital started only 10 years ago here in grand rapids. and after that period of time the community hospitals around us started to see fewer and fewer children because people naturally selected to come downtown to the children's hospital. you lose experience in the regional hospitals and you lose numbers. so it has somewhat been a natural progression where the experience is really concentrated where the pediatric hospitals are located. >> dr. erica michaels, thanks for sharing all of your experience at the pediatric hospital there in michigan. we appreciate it. and still ahead for you on this saturday night, ceo elon musk offers a journalist a certain condition for them to return to the platform. we'll speak to one of the journalists who agreed up next.