Fig. 2
From: The effect of novel vitamin D3 compounds on saliva samples from COVID-19 patients: a lab study

Comparison of specimens: complete sample size, n = 249; NP swab to saliva.
From: The effect of novel vitamin D3 compounds on saliva samples from COVID-19 patients: a lab study

Comparison of specimens: complete sample size, n = 249; NP swab to saliva.