(Chapter 6) Footnote 71:

Galen De ossibus 2.742.1-3, De usu partium 3.755.17 (May p. 460), Paulus Aegineta (7th cent. AD) Epitomae medicae 6.2.2.6. Vesalius’ description closely resembles Galen’s in De usu partium, loc. cit.