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Both verbal and written consent were obtained from mothers to agree their babies to participate in this study. Informed consent to participate was obtained from the parents or legal guardians of any participant under the age of 16. Consent forms were signed by the mothers or legal guardians who agreed to their children to participate after the research assistant educated them.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethical approval and consent to participate"}}],"article-number":"11"}}