I'm interested in hearing about any experiences I can about the ped. program at Hopkins. I am not interested at all in switching clinics (I love ours! ...and this place is 5hrs from us anyway), but my son will be having a workup there in addition to nasal potential difference testing once insurance goes through... so knowing as much as I can about what to expect would be great. <img src="i/expressions/face-icon-small-smile.gif" border="0">