Huang X, Lu Z, Zhang K, Wang G, et al. Prognostic impact of the ratio of preoperative CA19-9 to liver enzyme levels in
pancreatic cancer patients with jaundice (predictability of combined CA19-9/AST
and CA19-9/gamma-GGT for jaundiced PDAC patients). Pancreatology 2021 May 26. pii: S1424-3903(21)00470.
PMID: 34090807