Andersen J, Poulsen HS. Relationship Between Estrogen Receptor Status in the Primary Tumor and Its Regional and Distant Metastases: An immunohistochemical study in human breast cancer. AO [Internet]. 1988 Jan. 1 [cited 2024 Nov. 9];27(6):761-5. Available from: https://medicaljournalssweden.se/actaoncologica/article/view/34655