Introduced by Associate Editor Dr. Thomas Ortel, this bonus episode discusses the Review Series on Factor XI, published in volume 143 issue 15 of Blood Journal. Dr. Ortel is joined by contributing authors Owen McCarty, PhD, Gili Kenet, MD, and David Gailani, MD.

Review Series Articles: 

• Introduction to a review series on factor XI
• Biology of factor XI
• Targeting factor XI and factor XIa to prevent thrombosis
• Factor XI deficiency: phenotypic age-related considerations and clinical approach towards bleeding risk assessment