Assertion: maxillary sinusitis | /r/CapableOf | prove refractory
Facets:
value: to medical therapy
type: OTHER
value: to endoscopic antrostomy
type: OTHER
Source sentences:
text: A study by Costa et al indicated that endoscopic maxillary mega-antrostomy (EMMA) is an effective revision procedure in cases of chronic maxillary sinusitis that prove refractory to medical therapy and endoscopic antrostomy.