{"certainAgreement":{"piSponsorEmployee":false,"restrictiveAgreement":false},"limitationsAndCaveats":{"description":"Provox ActiValve users have short device life with normal indwelling prostheses (and hence use the Provox ActiValve). Therefore, the device life measured in this patient group is very short and not representative of the normal Provox Vega user."},"pointOfContact":{"email":"f.hilgers@nki.nl","organization":"Netherlands Cancer Institute","phone":"+31-20-5252550","title":"Prof. Dr. F.J.M. Hilgers"}}