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Sleep terrors (night terrors)
These are times of screaming or crying, intense fear, and sometimes waving arms and legs during sleep. The person often sits up in bed, looking scared.
Pregnancy and obesity: Know the risks
Know how obesity can affect your pregnancy. Learn about possible complications and specialized care you might need.
Trachoma
Trachoma is the leading preventable cause of blindness worldwide. Find out about symptoms, treatment and prevention of this serious eye disease.
Arteriovenous malformation
In this condition, a tangle of blood vessels affects the flow of blood and oxygen. Treatment can help.
Sarcoma
Learn about this cancer that forms in the bones and the connective tissue. Find out about symptoms, diagnosis, treatment and the many types of sarcoma.
Robotic hysterectomy
Robotic hysterectomy is a minimally invasive surgery to remove the uterus.
Breast reduction surgery
Find out more about this surgery to remove fat, breast tissue and skin from the breasts.
Herd immunity and COVID-19: What you need to know
To protect groups of people over time, it helps to know what level of recovery or vaccination in a population makes it hard for a germ to spread.
COVID-19: Long-term effects
Learn about the possible long-term effects of COVID-19.
How do COVID-19 antibody tests differ from diagnostic tests?
Antibody testing shows whether you've had the COVID-19 virus in the past. It's not the same as testing to see whether you have the virus now.
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