APA (7th ed.) Citation

Cai, Y., Yang, M., Liu, X., Zhang, L., Wang, J., & Sun, Y. Effect of hydromorphone combined with ropivacaine caudal block on immune function after hypospadias surgery in children. BMC.

Chicago Style (17th ed.) Citation

Cai, Yuzhu, Mingwen Yang, Xinghui Liu, Lingli Zhang, Jun Wang, and Yingying Sun. Effect of Hydromorphone Combined with Ropivacaine Caudal Block on Immune Function After Hypospadias Surgery in Children. BMC.

MLA (9th ed.) Citation

Cai, Yuzhu, et al. Effect of Hydromorphone Combined with Ropivacaine Caudal Block on Immune Function After Hypospadias Surgery in Children. BMC.