Text and Data Mining valid from 2016-06-13
Received: 17 December 2014
Accepted: 27 April 2016
First Online: 13 June 2016
Change Date: 22 June 2016
Change Type: Erratum
Change Details: In the version of this Article originally published, in Fig. 1 some of the lipid heads in the bottom right panel were mistakenly coloured grey and in Fig. 5b the red arrow labelling ‘flop’ in the right panel was out of place. These errors have been corrected in all versions of the Article.
: The authors declare no competing financial interests.