GT
George Tsokos
George C. Tsokos is a Greek-American rheumatologist who serves as a Professor of Medicine at Harvard Medical School and the Chief of the Division of Rheumatology and Clinical Immunology at the Beth Israel Deaconess Medical Center, Boston. He is recognized as one of the foremost leaders of modern lupus research with landmark discoveries that have brought understanding of lupus to new levels, shedding light on how the disease develops and progresses over time.
Excerpt from Wikipedia, available under CC BY-SA 4.0.
Books

Systemic Lupus Erythematosus
2007
ISBN 9780323070874