Source close to John Brown says sickle cell trait won't keep him out of Denver, doctor weighs in
Jack Lausten - 2023 - Men's Soccer - Shippensburg University Athletics
Steelers Sideline Safety Clark Because of Blood Trait - The New York Times
Southwestern Medical Perspectives 2019: The CRISPR Revolution by Southwestern Medical Foundation - Issuu
Safety Ryan Clark retires as member of Pittsburgh Steelers - ESPN
The Campaign For UAB - Give Something Change Everything Fall 2015 by Campaign for UAB Newsletter - Issuu
Ryan Clark rumors, news (Top 20+ Must-Read Stories)
Steelers' Clark launches sickle cell campaign
Near-death experience at heart of Ryan Clark's game-day drive - The Washington Post