PubMed:: "cetuximab" [Supplementary Concept] OR "panitumumab" [Supplementary Concept] OR cetuximab[tiab] OR c225[tiab] OR erbitux[tiab] OR panitumumab[tiab] OR vectibix[tiab] OR abx erf*[tiab];; Embase.com:: 'cetuximab'/exp OR 'panitumumab'/exp OR cetuximab:ab,ti OR c225:ab,ti OR erbitux:ab,ti OR panitumumab:ab,ti OR vectibix:ab,ti OR (abx NEXT/1 erf*):ab,ti;; Cochrane Library:: cetuximab or c225 or erbitux or panitumumab or vectibix or "abx erf" or "abx erfs":ti,ab,kw
