Laboratory reference ranges reflect methods, populations, and policies, and experienced clinicians interpret them in context ...

Your doctor says everything looks fine, but you still feel terrible. The problem might not be your health but how labs define “normal.” Understanding the difference between normal and optimal could ...

Please provide your email address to receive an email when new articles are posted on . Reference ranges for thyroid function among adolescents differ substantially from those for adults, according to ...

A large study of more than 9,000 men has established harmonized reference ranges for total testosterone in men that when applied to assays that have been appropriately calibrated will effectively ...

Please provide your email address to receive an email when new articles are posted on . Polygenic score was a stronger predictor of TSH levels than free T 4 in two study cohorts. Using polygenic score ...

A large study of more than 9,000 men has established harmonized reference ranges for total testosterone in men that when applied to assays that have been appropriately calibrated will effectively ...

Harmonized reference normal ranges for testosterone levels in healthy, nonobese men have been generated in a landmark study that should aid in accurately diagnosing hypogonadism, say US investigators.

The sex of an individual is typically assigned at birth based on the appearance of the external genitalia. Chromosomal testing can determine whether a person is biologically male (1 X chromosome and 1 ...

Dr. Miller: How worried do you need to be when you receive your lab results in the mail or online before your physician's had a chance to talk to you about them? I'm Dr. Tom Miller and we're going to ...