Nutrition basics
Learning Center
COVID-19 antibody testing
Learn how COVID-19 antibody testing is done to find out if you've had a past infection with SARS-CoV-2, the virus that causes coronavirus disease 2019.
Intraoperative magnetic resonance imaging (iMRI)
Find out how neurosurgeons use intraoperative magnetic resonance imaging (iMRI) during brain surgery.
Pregnancy and atrial fibrillation
Being pregnant with AFib raises the risk of blood clots. Know which blood-thinning medicines are and are not safe during pregnancy.
Dense breast tissue: What it means to have dense breasts
Find out what it means if your mammogram report says you have dense breast tissue. Learn about additional breast cancer screening tests to consider.
Video: Baby's soft spots (fontanels)
A baby's soft spots (fontanels) close when the skull bones fuse together. See how.
Video: Mammogram for breast cancer — What to expect
Watch video to see what it's like to have a mammogram, or breast cancer detection exam.
Guide to different tick species and the diseases they carry
Learn about different tick species and some of the diseases they may carry.
Vaginal bleeding
Bleeding from your vagina that's different from your period might signal a problem. Learn about possible causes and when you should see a doctor.
Breast calcifications
Most breast calcifications are benign. Find out more about what can cause them, what they look like, and when to see a doctor.
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