monomer’ OR ‘nbca’ AND (‘ethylene vinyl alcohol copolymer’/exp OR ‘ethylene vinyl alcohol copolymer’) OR ‘poly (ethylene co vinyl alcohol)’/exp OR ‘poly (ethylene co vinyl alcohol)’ OR ‘chemoembolization’/exp OR ‘chemoembolization’ OR ‘embolization’/exp OR ‘embolization’ OR ‘embolisation’/exp OR ‘embolisation’) AND (‘endovascular surgery’/exp OR ‘endovascular’) AND (‘arteriovenous malformation’/exp OR ‘arteriovenous malformation’ OR ‘arteriovenous malformations’ OR ‘avm’) AND (1990:py OR 1991:py OR 1992:py OR 1993:py OR 1994:py OR 1995:py OR 1996:py OR 1997:py OR 1998