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Atypical hyperplasia of the breast
Learn how a diagnosis of atypical lobular hyperplasia or atypical ductal hyperplasia affects your risk of breast cancer and what you can do.
Atypical cells: Are they cancer?
Atypical cells appear abnormal, but they aren't necessarily cancerous.
Atrial fibrillation
A fast, pounding heartbeat could be due to AFib, a type of heart rhythm problem. Know the warning signs and when treatment is needed.
Asthma: Steps in testing and diagnosis
Think you or your child might have asthma? Here's what's involved in making a diagnosis.
Asthma: Limit asthma attacks caused by colds or flu
If you have asthma, find out how to keep your sneeze from turning into a wheeze due to colds or flu.
Asthma treatment: 3 steps to better asthma control
Follow this three-step approach to keep symptoms under control and prevent attacks.
Asthma medications: Know your options
Learn more about the different categories of medications to help you control asthma symptoms.
Asthma inhalers: Which one's right for you?
With so many options, choosing an asthma inhaler can be confusing. Use this helpful guide to find the one that works best for you.
Aspirin during pregnancy: Is it safe?
A Mayo Clinic specialist explains what you need to know about taking aspirin if you're pregnant.
Arthritis
Learn about how different types of arthritis affect joints in different ways, along with how to get relief from arthritis pain.
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