Update information
May 2021: We updated this guidance to include evidence from 2 new published studies of Parafricta. Details of the changes are explained in the review decision. New evidence identified during the guidance review is marked with [2021].
Minor changes since publication
December 2025: Medical technologies guidance 20 has been migrated to HealthTech guidance 355. The recommendations and accompanying content remain unchanged.
ISBN: 978-1-4731-7639-3