An aluminium filter for use in localisation of the placental site.
D000535:Aluminum; D005260:Female; D005374:Filtration; D006801:Humans; D010920:Placenta / Q000000981:diagnostic imaging*; D011247:Pregnancy; D011859:Radiography; D014599:Uterus; D014965:X-Rays / Q000295:instrumentation
D000535:Aluminum
PLACENTA/roentgenography; ROENTGEN RAYS/apparatus