Labor and delivery
Learning Center
COVID-19: Long-term effects
Learn about the possible long-term effects of COVID-19.
COVID-19: Who's at higher risk of serious symptoms?
Advanced age and some health conditions can raise the risk of serious COVID-19 (coronavirus disease 2019) illness.
Calcium and calcium supplements: Achieving the right balance
Considering calcium supplements? First figure out how much calcium you need. Then weigh the pros and cons of supplements.
Calcium supplements: A risk factor for heart attack?
Learn about the possible link between calcium supplements and heart attacks.
Can vaginal tears during childbirth be prevented?
Learn what you can do to help lower the risk of vaginal tears during childbirth.
Can vitamin D protect against coronavirus disease 2019 (COVID-19)?
Find out what the research says about links between this key vitamin and the widespread viral infection.
Cardiac resynchronization therapy
This heart failure treatment uses a pacemaker or a pacemaker with a defibrillator. Know when the treatment is needed.
Cardiopulmonary resuscitation (CPR): First aid
Do you know how to do cardiopulmonary resuscitation (CPR)?
Carotid endarterectomy
This procedure removes plaque buildup in the carotid artery to help reduce your risk of stroke.
Carotid ultrasound
This test examines the blood flow through the arteries in the neck that deliver blood from the heart to the brain.
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