Goodwin Laura, Taylor Beck, Kokab Farina, Kenyon Sara
Institute of Applied Health Research, Public Health, Epidemiology and Biostatistics, University of Birmingham, Birmingham B15 2TT, United Kingdom.
Midwifery. 2018 May;60:36-40. doi: 10.1016/j.midw.2018.02.006. Epub 2018 Feb 13.