I am looking for a disease state, for the purpose of creating a seminar for my department's students. I need some specific parameters to make the concept work. The factors are: A- no current instrument for patient reported outcomes (HRQoL) exists but there is a need for one; B- the disease state has an active and effective patient support organization (PAH is a good example) and C- the organization has an established website with a meaningful, of patient visitors. Together, these usually mean a rare or "orphan" disease. The project will be to create the instrument for the use of the clinical and patient community, as an exercise for the students.