APA (7th ed.) Citation

Kinney Mary V, Lawn Joy E, Howson Christopher P, & Belizan José. (2012). 15 million preterm births annually: What has changed this year? BMC.

Chicago Style (17th ed.) Citation

Kinney Mary V, Lawn Joy E, Howson Christopher P, and Belizan José. 15 Million Preterm Births Annually: What Has Changed This Year? BMC, 2012.

MLA (9th ed.) Citation

Kinney Mary V, et al. 15 Million Preterm Births Annually: What Has Changed This Year? BMC, 2012.