TP53 and small cell lung carcinoma: The top ten pathways included ‘Cytokine–cytokine receptor interaction’, ‘Pathways in cancer’, ‘p53 signaling pathway’, ‘Small cell lung cancer’, ‘Proteoglycans in cancer’, ‘Transcriptional misregulation in cancer’, ‘Focal adhesion’, ‘ECM–receptor interaction’, ‘Cell adhesion molecules’ and ‘Complement and coagulation cascades’ (Figure 2A).