Assertion: patella | /r/HasProperty | investigated
Facets:
Source sentences:
text: In placental mammals, some lizards and birds, the patella is usually ossified (as far as it has been investigated; Haines, 1942 ; Haines, 1969 ; Hogg, 1980 ; Vickaryous & Olson, 2007 ), whereas in marsupials it is generally fibrocartilaginous ( Reese et al., 2001 ).