“Sweat Gland Adenocarcinoma With High Serum Levels of CA19-9 and CEA: Difficulty in Diagnosis and Treatment”. European Journal of Oncology and Environmental Health 21, no. 3 (December 20, 2016): 185–189. Accessed July 18, 2024. https://mattioli1885journals.com/index.php/EJOEH/article/view/3299.