Impact of ASCO/CAP 2007, 2013 and 2018 recommendations on Her-2/neu gene amplification status testing in patients with breast cancer - B. T. Klimuk; O. M. Duhan; S. I. Polinyk; L. A. Rybchenko; S. V. Klymenko (Bulletin of Ukrainian Society of Geneticists and Breeders, 2019)