Bowker, K., Orton, S., Cooper, S., Naughton, F., Whitemore, R., Lewis, S., …Ussher, M. (in press). Views on and experiences of electronic cigarettes: a qualitative study of women who are pregnant or have recently given birth. BMC Pregnancy and Childbirth, 18, https://doi.org/10.1186/s12884-018-1856-4