Wall Street traders sent stocks lower after a series of all-time highs spurred calls for a breather amid signs of buyer exhaustion. Bonds rose as a $58 billion Treasury sale drew solid demand.

The school is the only one of its kind in the area and has a waiting list. Families who can’t enroll there must look elsewhere for services.

Many drug trials are vetted by companies with ties to the drugmakers, raising concerns about conflicts of interest and patient safety.

Researchers say artificial intelligence has helped them create one of the most detailed maps of the mouse brain to date.