Complex sentence: The Stollery was the first hospital in Canada to perform open heart surgery and deliver a baby at the same time, perform the first pediatric auto-islet transplant and is the site of Canada's Pediatric Centre for Weight and Health.
Split into simpler sentences: The Stollery was the first hospital in Canada to perform open heart surgery and deliver a baby at the same time, and the first to perform the first pediatric auto-islet transplant. It is the site of Canada's Pediatric Centre for Weight and Health.