User Change your cover photo Upload Change your cover photoUpload Apply Cancel Change your cover photo Allan Shefrin This user account status is Approved followers5 following0 Follow Message About About Posts Posts Comments Comments Activity Activity Badges Badges Follow Alexander Arroyo Follow Ron Berant Proud husband and father, strong believer that POCUS would change the way we practice medicine, love gadgets.... Follow Kelly Bergmann Follow Kirstin Weerdenburg East Coast Canadian POCUS Enthusiast Follow David Nissan Perfection is the death of progress...Hi! I'm David Nissan. You may remember me from such websites as P2SK.ca or the old P2Network. I'll Username or E-mail Password Only fill in if you are not human Keep me signed in Register Forgot your password?