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Factors defining “high tumor burden” (A) and degree of association of those factors with this concept evaluated through a scoring system (scale from 1 to 7 where 1 is “I do not associate it with ‘high tumor burden’ at all” and 7 “I strongly associate it with ‘high tumor burden’”) (B).
Abbreviations: ECOG PS, Eastern Cooperative Oncology Group Performance Status; LDH, lactate dehydrogenase.
