Funding for this research was provided by:
Fonds de Recherche du Québec - Santé (Chercheur Boursier)
Text and Data Mining valid from 2019-11-15
Received: 28 March 2019
Accepted: 4 November 2019
First Online: 15 November 2019
Ethics approval and consent to participate
: In this paper we use secondary data on Matched Multiple Birth from the United States National Centre for Health Statistic’s (NCHS) Vital Statistics 1995–1998. The data are available online (ExternalRef removed) and no ethical approval was required.
: Not Applicable.
: The authors declare that they have no competing interests.