obturator,obturator foramen

【预售】dental obturator.; v.1-2, (1855-1856)
guttacore obturators | dentsply sirona
出售circon acmi 23 e e123-o cysto sheath & e123-s obturator
a case of a perforated obturator hernia with a femoral abscess
cv fill cordless dental gutta percha obturation system