| http://www.w3.org/ns/prov#value | - At each stage a self-completion questionnaire was sent through the post to mothers who were also offered the option to complete the survey online.What data items are collected?Topics covered in the survey included: details of pregnancy and birth; how infants are fed, including incidence, prevalence and duration of breast-feeding, and types of milk/other drinks/food given; vitamins consumed by moth
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