biomedcentral.com/bmcbioinformatics/about
Bottom,Top,Right1
<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML">
<mml:mi>e</mml:mi>
<mml:mo class="MathClass-rel">∈</mml:mo>
<mml:mi mathvariant="script">E</mml:mi>
</mml:math>