A national transplant board has permanently adopted a rule that gives children a better shot at donor lungs.

The vote comes a year after a Delaware County girl's need for new lungs sparked a national debate on donor rules.

The Organ Procurement and Transplantation Network said the issue affects only about 20 children a year.

The group approved Monday a rule that lets children also apply for adult lungs.

A judge had ordered the network to add 11-year-old Sarah Murnaghan of Newtown Square to the adult list last year. After two transplants, one failed, Sarah is now breathing on her own.

The network said a dozen children have asked to be added to the adult list, however, it said most are still matched with donor lungs from children.