All cytokeratin assays are not the same.
Devine
P L
PL
D006801:Humans; D007633:Keratins / Q000032:analysis*; D008171:Lung Diseases / Q000378:metabolism; D008175:Lung Neoplasms / Q000737:chemistry; D011933:Reagent Kits, Diagnostic; D012016:Reference Values; D012680:Sensitivity and Specificity
D011933:Reagent Kits, Diagnostic; D007633:Keratins