KCNJ4 and small cell lung carcinoma: The AIC-score of this SCLC-subgroup is composed of 12 LC-markers (assigned to CHRNA5, HCG4, DNAJB4 (4 ×  each), CYP2A6, CHRNA3, CHRNA2, AMICA1, KCNJ4, AS1, BRCA2, EGFL8 and WNK1 (2 × each) and 27 AhR/Wnt-markers (assigned to all AhR/Wnt-genes except DKK3).