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Learning Center
Calcium supplements: A risk factor for heart attack?
Learn about the possible link between calcium supplements and heart attacks.
Cancer risk: What the numbers mean
The news is full of reports about cancer risk, but what does it all mean for you? Find out how to interpret cancer statistics.
Cellulitis: How to prevent recurrent episodes
Learn to treat and prevent recurrent cellulitis.
Cervical length: Why does it matter during pregnancy?
If cervical length during pregnancy shortens too soon, there might be an increased risk of preterm labor.
Circumcision (male)
Learn about the benefits and risks of surgery to remove the skin that covers the tip of the penis.
Coughing more after quitting smoking: What's the deal?
If you cough more than usual after you give up cigarettes, find out what it might mean and when to call the doctor.
Cryotherapy for prostate cancer
Find out how very cold temperatures are used to freeze tissue and treat prostate cancer. Learn about the side effects and potential benefits of cryotherapy.
Cuts of beef: A guide to the leanest selections
Whether you're watching your health or your weight, you can still enjoy this type of red meat once in a while. This guide points you to lean choices.
Cystic fibrosis
This inherited condition causes severe damage to the lungs, digestive system and other organs. Learn about improvements in screening and treatments.
Delayed ejaculation
Learn what can cause delayed or absent ejaculation and how it can be treated.
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