Rapid and sustained remission of synovitis, acne, pustulosis, hyperostosis, and osteitis (SAPHO) syndrome with IL-23p19 antagonist (risankizumab) - Akshay Flora, MD, MMed; Richard Holland, MBChB; Annika Smith, MBBS; John W. Frew, MBBS, MMed, MS (Elsevier, 2021)