Question: What one-time American Red Cross affiliate and African American medical researcher aided Dr. John Scudder with his Plasma for Britain program?
Sentence (from "Charles R. Drew"): As the most prominent African American in the field, Drew protested against the practice of racial segregation in the donation of blood, as it lacked scientific foundation, and resigned his position with American Red Cross, which maintained the policy until 1950.
Relevant evidence: Yes