@article{202009.0555,
	doi = {10.20944/preprints202009.0555.v1},
	url = {https://doi.org/10.20944/preprints202009.0555.v1},
	year = 2020,
	month = {September},
	publisher = {Preprints},
	author = {Teresa-Maria Tomasa-Irriguible and Lara Bielsa-Berrocal},
	title = {Up to 40% of COVID-19 Critically Ill Patients Have Vitamin D Deficiency},
	journal = {Preprints}
}