For citations:

Frolova M.A., Stenina M.B. Peculiarities of BRCA1/2 testing in patients with advanced HER2-negative breast cancer in the Russian Federation (results of a survey of Russian oncologists). Malignant tumours. 2021;11(2):38-44. (In Russ.) https://doi.org/10.18027/2224-5057-2021-11-2-38-44