Elastic resistance
Learning Center
Atypical cells: Are they cancer?
Atypical cells appear abnormal, but they aren't necessarily cancerous.
Asthma: Steps in testing and diagnosis
Think you or your child might have asthma? Here's what's involved in making a diagnosis.
Active surveillance for prostate cancer
Learn about why doctors may recommend active surveillance for prostate cancer and what to expect.
Abnormal sperm morphology: What does it mean?
Abnormal sperm morphology may be a contributing factor in male infertility.
ANA test
An antinuclear antibody (ANA) test is one test used to help determine if you have an autoimmune disease such as lupus.
A1C test
Learn more about the preparation for and results of this common diabetes blood test.