@article{ac1dcaea10b54dc68578603d7f6640a2,
title = "Periconception endogenous and exogenous maternal sex steroid hormones and risk of asthma and allergy in offspring: protocol for a systematic review and meta-analysis",
author = "Merhumisa Talovic and Sheikh Aziz and A Sheikh and Nicola McCleary and Maijaliisa Erkkola and Minna Kaila and Virtanen, {Suvi M} and Nwaru, {Bright I}",
year = "2017",
doi = "10.1136/bmjopen-2016-014637",
language = "English",
volume = "7",
pages = "e014637",
number = "7",
}