APA

Hwang S. S., Smith R. A., Barfield W. D., Smith V. C., McCormick M. C. & Williams M. A. (20180209). Supine sleep positioning in preterm and term infants after hospital discharge from 2000 to 2011. : Journal of perinatology : official journal of the California Perinatal Association.

Chicago

Hwang S S, Smith R A, Barfield W D, Smith V C, McCormick M C and Williams M A. 20180209. Supine sleep positioning in preterm and term infants after hospital discharge from 2000 to 2011. : Journal of perinatology : official journal of the California Perinatal Association.

Harvard

Hwang S. S., Smith R. A., Barfield W. D., Smith V. C., McCormick M. C. and Williams M. A. (20180209). Supine sleep positioning in preterm and term infants after hospital discharge from 2000 to 2011. : Journal of perinatology : official journal of the California Perinatal Association.

MLA

Hwang S S, Smith R A, Barfield W D, Smith V C, McCormick M C and Williams M A. Supine sleep positioning in preterm and term infants after hospital discharge from 2000 to 2011. : Journal of perinatology : official journal of the California Perinatal Association. 20180209.