Hong Kong health authorities have ordered hospitals to stop using a batch of blood pressure monitoring sets after an improperly sealed device was linked to the death of an elderly man undergoing a heart operation. The Department of Health also said on Friday that it had ordered the local supplier to halt sales of the affected batch and it was investigating the incident at Tuen Mun Hospital. The Hospital Authority noted on Thursday the 75-year-old man had a history of chronic obstructive...