Rasmuson, T. et al. 1983. Tumor Markers in Bronchogenic Carcinoma: An Evaluation of Carcinoembryonic Antigen, Tissue Polypeptide Antigen, Placental Alkaline Phosphatase and Pseudouridine. Acta Oncologica. 22, 3 (Jan. 1983), 209–214. DOI:https://doi.org/10.3109/02841868309134033.