Conclusions: LC-MSMS is the appropriate method for quantifying low serum testosterone concentrations.

In conclusion, low serum albumin was a modest marker of increased VTE risk.

Conclusions: Our data show that hepatic steatosis is associated with low serum IGF1 levels.

Systemic MTX is a good alternative in selected patients with low serum hCG concentrations.

All patients showed low serum levels of atrial natriuretic peptide.

Evidence also supports a relationship between low serum 25(OH)D levels and poor cognition.

Given time, the brain adapts to hyponatremia, permitting survival despite extraordinarily low serum sodium concentrations.

High and low serum TSH levels were defined according to age-specific reference limits for the assay.

This study suggests there may be a relationship between borderline personality disorder and low serum cholesterol.

RIAs had the highest number of low serum fT4 concentrations in euthyroid dogs with concurrent illness.

In conclusion, low serum T is common in men with MTHF and only partly due to age.

In addition, increased leptin levels are associated with low serum albumin levels and PCR in dialysis patients.

The test battery showed no consistent differences between performance at times of high versus low serum concentration.

All premature infants had undetectable macular pigment, and most had unusually low serum and skin carotenoid concentrations.

Osteoclastogenesis was augmented on aged compared to young bones, and the difference was enhanced under low serum conditions.

Groups with high and low serum IgE levels showed no significant differences in the quantity of precipitated proteins.