Corrigendum: Establishment of tumor treating fields combined with mild hyperthermia as novel supporting therapy for pancreatic cancer [This corrects the article DOI: 10.3389/fonc.2021.738801.]. … ← Corrigendum: Establishment of tumor treating fields combined with mild hyperthermia as novel supporting therapy for pancreatic cancer Impact of pre-existing cardiometabolic diseases on metastatic cancer stage at diagnosis: a prospective multinational cohort study →