Fig. 1From: Opportunities and challenges of patient-derived models in cancer research: patient-derived xenografts, patient-derived organoid and patient-derived cellsSchematic of three patient-derived models: PDX, PDO, and PDC. The process to establish the three patient-derived models: PDX, PDO, and PDC, respectively. All the three derived from the actual patient’s tumor tissue, but under different approachesBack to article page