@article {204943,
	title = {Perfusion index as an objective measure of postoperative pain in children undergoing adenotonsillectomy: a cohort study},
	journal = {Journal of Clinical Monitoring and Computing},
	year = {2021},
	author = {Abeer Ahmed and Abdelrahman Lotfy and Jehan Elkholy and Bassant Abd Elhamid and Mohamed Ollaek}
}
