Funding for this research was provided by:
Received: 30 July 2016
Accepted: 9 January 2018
First Online: 5 February 2018
Ethics approval and consent to participate
: Ethics approval for the study protocol was obtained from the Ethical Cantonal Board of Geneva Switzerland (CER 15.023) and the local health authorities of Ambanja, Madagascar authorized the study. All women provided written consent to participate in the study. This trial was retrospectively registered at the International Standard Randomized Controlled Trial Register (identifier ISRCTN15798183; August 22, 2015).
: Not applicable
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.