TY - GENERIC DO - 10.20944/preprints202009.0555.v1 UR - http://dx.doi.org/10.20944/preprints202009.0555.v1 TI - Up to 40% of COVID-19 Critically Ill Patients Have Vitamin D Deficiency T2 - Preprints AU - Tomasa-Irriguible, Teresa-Maria AU - Bielsa-Berrocal, Lara PY - 2020 DA - 2020/09/23 PB - Preprints