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Campbell, Tammy and Shackleton, Nichola (2018) Pre-pregnancy body mass index and breastfeeding initiation, early cessation and longevity: evidence from the first wave of the UK Millennium Cohort Study. Journal of Epidemiology and Community Health. ISSN 0143-005X
Campbell, Tammy and Shackleton, Nichola (2020) Key elements of the research process during secondary analysis of the millennium cohort study: researching relationships between mothers’ pre-pregnancy body mass index and breastfeeding behaviors. SAGE Research Methods Cases. Sage Publications, London, UK. ISBN 9781529740097