bmc public health published an extensive collection of exciting research in 2014, with highly accessed articles covering a range of widely discussed topics. here, we present an overview of some of the journal&rsquos most popular articles of the year.jaya venkitachalam 27 jan 2015 aedes aegypti mosquito, photo credit james gethany, flickr, cc 2.0electronic cigaretteswith a growing number of people utilising electronic cigarettes, an important question going forward is &lsquo&rsquowhat are the health outcomes associated with their use&rsquo&rsquo.