Dr. Hilary Cass published a landmark report that led to restrictions on youth gender care in Britain. U.S. health groups said it did not change their support of the care.

An outdated medical term often masks treatable illnesses, health experts contend.

Richard Slayman received the historic procedure in March. The hospital said it had “no indication” his death was related to the transplant.

In a cautious new paper, scientists tried to determine whether an interactive speech board might enrich the life of a parrot named Ellie.

A bioethicist, she pioneered bedside methods for helping patients, their families and doctors deal with anguishing life-and-death decisions in a high-tech age.

The payment system amounted to one of the most forceful actions taken so far by agriculture officials who have raced to keep up with the spread of the virus among dairy cows.