Mutlu, G. Y., Kusdal, Y., Ozsu, E., Cizmecioglu, F. M., & Hatun, S. (2011). Prevention of Vitamin D deficiency in infancy: Daily 400 IU vitamin D is sufficient. BioMed Central.

Mutlu, Gul Yesiltepe, Yusuf Kusdal, Elif Ozsu, Filiz M. Cizmecioglu, و Sukru Hatun. Prevention of Vitamin D Deficiency in Infancy: Daily 400 IU Vitamin D Is Sufficient. BioMed Central, 2011.

Mutlu, Gul Yesiltepe, et al. Prevention of Vitamin D Deficiency in Infancy: Daily 400 IU Vitamin D Is Sufficient. BioMed Central, 2011.