@article{2d7cbaf74a9a4d7ca1b6d63796e89cb8,
title = "Monitoring serum estradiol levels in breast cancer patients during extended adjuvant letrozole treatment after five years of tamoxifen: a prospective trial",
keywords = "Aromatase inhibitor, Letrozole, Estradiol, Breast cancer, Liquid chromatography tandem mass spectrometry, 3122 Cancers",
author = "Maria Faltinova and Leena Vehmanen and Heli Lyytinen and Mikko Haanp{\"a}{\"a} and Esa H{\"a}m{\"a}l{\"a}inen and Aila Tiitinen and Carl Blomqvist and Johanna Mattson",
year = "2021",
month = jun,
doi = "10.1007/s10549-021-06168-w",
language = "English",
volume = "187",
pages = "769--775",
journal = "Breast Cancer Research and Treatment",
issn = "0167-6806",
publisher = "Springer",
number = "3",
}