@article{7225daebb7914c4ab10b0b53a906c084,
title = "Circulating estrogens and progesterone during primiparous pregnancies and risk of maternal breast cancer",
keywords = "breast cancer, estrogens, nested case-control study, pregnancy, progesterone, breast cancer, estrogens, nested case-control study, pregnancy, progesterone",
author = "Annekatrin Lukanova and Kjell Grankvist and Eero Pukkala and Anne Zeleniuch-Jacquotte and Matti Lehtinen and Paolo Toniolo and Helja-Marja Surcel and Eva Lundin and Marjo Kaasila and Hans-Ake Lakso and Helena Schock and Anika Husing and Rudolf Kaaks and Pentti Koskela",
year = "2012",
doi = "10.1002/ijc.26070",
language = "English",
volume = "130",
pages = "910--920",
journal = "International Journal of Cancer",
issn = "0020-7136",
publisher = "Wiley",
number = "4",
}