@article{510a8f2efef8479090243052272c2fad,
title = "Effect of various forms of postmenopausal hormone therapy on the risk of ovarian cancer : A population-based case control study from Finland",
keywords = "estrogen, histology, levonorgestrel intrauterine system, progestin, stage, tibolone, estrogen, histology, levonorgestrel intrauterine system, progestin, stage, tibolone",
author = "Virpi Koskela-Niska and Eero Pukkala and Heli Lyytinen and Olavi Ylikorkala and Tadeusz Dyba",
year = "2013",
doi = "10.1002/ijc.28167",
language = "English",
volume = "133",
pages = "1680--1688",
journal = "International Journal of Cancer",
issn = "0020-7136",
publisher = "Wiley",
number = "7",
}