The majority of circulating 25-hydroxyvitamin D (25(OH)D) is protein bound and perhaps less available than the free fraction of 25(OH)D; therefore, researchers have proposed that the measurement of free 25(OH)D in human serum...
The purpose of this study was to determine the association between sex hormone levels and the presence of SARS-CoV-2 antibodies. Using both salivary and blood samples, a predictive focused study was conducted to determine the...
The majority of circulating 25-hydroxyvitamin D (25(OH)D) is protein bound and perhaps less available than the free fraction of 25(OH)D; therefore, researchers have proposed that the measurement of free 25(OH)D in human serum...