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Article History

Received: 28 May 2018

Accepted: 2 November 2018

First Online: 29 November 2018

Ethics approval and consent to participate

: The study was conducted and all samples were collected by PRICEPTS Inc. (PRICE Product Testing Services Incorporated) in Manila with approval from the Procter & Gamble Singapore Innovation Center (Singapore) Institutional Review Board and in accordance with the World Medical Association Declaration of Helsinki (1996 amendment). ICH Guidelines for Good Clinical Practice (GCPs) were followed, and voluntary informed consent was provided with the approval of the Research Ethics Board of P&G. This clinical investigation complied with STROBE guidelines for observational human studies. Mothers who agreed to have their children participate in this study signed an informed consent form and teenagers who agreed to participate signed an assent form.

: Not applicable.

: Several co-authors (L.Y. D.S. P.L. J.L. P.B. P.H. J.T. R.K. T.T. M.O.) contributed to and/or conducted this study while being employed by the Procter & Gamble Company. These co-authors may own stock in the company, but direct financial gain or loss from the publication of this manuscript is not anticipated. Under a requirement of employment obligations of the Procter & Gamble Company to maintain confidentiality, these co-authors cannot declare patent activity.

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