English to Flemish Medical Medical: Pharmaceuticals Experimenteel onderzoek

"In the event your study doctor is unable to locate you for the limited purpose of collecting necessary survival follow-up data, you authorize your study doctor to disclose contact information about you, such as your name, last known address, telephone number to a locator company for the sole purpose of updating the study doctor with your current contact information or vital status."

Ik begrijp wel wat hiermee wordt bedoeld, maar ik weet niet zo goed hoe ik het moet vertalen.