Elizabeth Roof has worked with children and teens with PWS for almost 30 years at Vanderbilt University. Elizabeth has been licensed since 1994 as a Health Service Provider in Psychology in the state of Tennessee and has been doing research with Elisabeth Dykens since 2003, focused on the psychiatric, behavioral and adaptive strengths in PWS and WS. Elizabeth has personally evaluated over 450 individuals with PWS and WS.  Elizabeth has trained 27 research staff over the years, who take that expertise with them to graduate, medical, and nursing school, and out into the real world. Elizabeth also works with residential and clinical professionals and schools to provide best practices for those living with PWS and WS. Elizabeth has managed 5 NIH trials and 11 clinical trials in PWS since 2014 and works with sponsors to identify best outcome measures, study designs, and logistics that best suit PWS families. Elizabeth has spoken at PWS and WS conferences across the US, Canada, Europe, and Australia. She loves meeting new families and continuing to have lasting relationships with many families over the years.