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PWD and JF received payment for writing and preparing the manuscript for publication.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Conflict of interest"}},{"value":"This is an in vitro study using an in vitro model. There were no patients or human tissue involved in this study and thus the requirement for ethical approval and informed consent were not applicable.","order":4,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethics approval"}},{"value":"Not applicable as an in vitro model was used and no human tissue or patients were involved.","order":5,"name":"Ethics","group":{"name":"EthicsHeading","label":"Consent to participate"}},{"value":"The following additional data will be made available on publication: the experimental data at each pH and the dose volume evaluated in the infant stomach model.","order":6,"name":"Ethics","group":{"name":"EthicsHeading","label":"Availability of data and material"}},{"value":"Not applicable.","order":7,"name":"Ethics","group":{"name":"EthicsHeading","label":"Code availability"}},{"value":"All authors contributed to the study\u2019s conception and design. Material preparation and data collection and analysis were performed by JF and PWD. 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