@article{202307.1575,
	doi = {10.20944/preprints202307.1575.v1},
	url = {https://doi.org/10.20944/preprints202307.1575.v1},
	year = 2023,
	month = {July},
	publisher = {Preprints},
	author = {Li-li Zhang and Li-li Wang and Mei You and Zi-xuan Wei and Yuan Ding and Nan-nan Han and Yuan-yuan Kong and Xiao-yan Wang and Xiao-li Jin and Li Li and An-nuo Liu},
	title = {Study on umbilical cord shedding time and influencing factors of premature infants},
	journal = {Preprints}
}