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  • Lung Cancer: Should I Have Screening?

    Guides people who are at high risk for lung cancer through the decision on whether to have an annual low-dose CT screening. Discusses the benefits and risks of having screening and the risk for getting lung cancer. Includes an interactive tool to help you decide.

  • Knee Arthritis: What Is Osteoarthritis?

    Learn what knee osteoarthritis is and what may cause it.

  • Week 20 of Pregnancy: What's Going On Inside

    By week 20, you've probably felt your baby move. It may not feel like an obvious kick—yet! Instead, your baby's first movements might feel like "butterflies" or gas bubbles. Wondering what your baby looks like at 20 weeks? Your baby is now about the size of a red pepper. Average...

  • Week 24 of Pregnancy: What's Going On Inside

    By week 24, you may have noticed some jerking movements inside your belly—or even seen them on the outside! Repetitive, jerky movements usually mean your baby has the hiccups. Hiccups are perfectly normal and can last anywhere from a minute to an hour. Babies at this stage can also now...

  • Week 28 of Pregnancy: What's Going On Inside

    At 28 weeks, your baby may be moving a lot more—and possibly keeping you up at night! Babies find the movement and noise of daytime hours to be soothing. So they often sleep during the day and are awake at night. Wondering what your baby looks like at 28 weeks?...

  • Week 32 of Pregnancy: What's Going On Inside

    Around this time, your baby is getting ready to do a very important thing that they will need to do in the outside world: Breathe. Wondering what your baby looks like at 32 weeks? Your baby is now about the size of a cabbage. Average baby length is 11 in.

  • Week 36 of Pregnancy: What's Going On Inside

    At this time, your baby may be spending a lot of time upside down. This "head-down" position can be more comfortable for your baby because of the pear shape of your uterus. It's also easier to give birth if your baby's head comes out first. Wondering what your baby looks...

  • Week 40 of Pregnancy: What's Going On Inside

    At 40 weeks, you have reached your due date. Your baby could be coming any day. Wondering what your baby looks like at 40 weeks? Your baby is now about the size of a small watermelon. Average baby length is 20 in. (50 cm). And average baby weight is 8...

  • Transcatheter Aortic Valve Implantation (TAVI)

    Transcatheter aortic valve implantation (TAVI) is a procedure to implant a replacement aortic valve in the heart. It is also called transcatheter aortic valve replacement (TAVR). Your doctor will use a thin, flexible tube called a catheter to put in your new heart valve. Your doctor will put the catheter...

  • Celiac Disease Antibodies Test

    Celiac disease is a problem that happens when gluten in food causes your immune system to attack the lining of your small intestine. As part of this mistaken attack, your immune system creates certain proteins called antibodies. If your doctor thinks you may have celiac disease, they will order a...


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