Crowther, C. A., & Crosby, D. D. (2010). Vitamin K prior to preterm birth for preventing neonatal periventricular haemorrhage. Cochrane Database Syst Rev.
Chicago Style CitationCrowther, Caroline A., i Danielle D. Crosby. "Vitamin K Prior to Preterm Birth for Preventing Neonatal Periventricular Haemorrhage." Cochrane Database Syst Rev 2010.
Cita MLACrowther, Caroline A., i Danielle D. Crosby. "Vitamin K Prior to Preterm Birth for Preventing Neonatal Periventricular Haemorrhage." Cochrane Database Syst Rev 2010.
Atenció: Aquestes cites poden no estar 100% correctes.