Credit: Getty Images. Evidence suggests that patent ductus arteriosus comprises anywhere from 5% to 10% of all congenital heart disease. Although the majority of congenital heart diseases (CHD) are ...

I work with many parents who suspect their child might have pathological demand avoidance (PDA). They are overwhelmed and report difficulty finding health care professionals who understand their ...

Pathological demand avoidance (PDA) is an extreme resistance to everyday demands, such as getting dressed or brushing the teeth. Researchers often associate PDA with autism, especially in children.