The NHIS, which is promoting PVA improvement, disclosed the results of service research conducted last year and announced plans to seek improvement measures with the private sector in May. In this improvement plan, it is expected that items with a 10% billing amount and more than 5 billion won will be added to the Ka-type negotiation target, which is a new drug, and a plan to raise the standard for exclusion from negotiation to 3 billion won to 5 billion won a year will be pursued. According to industry sources on the 11th, the NHIS released last year's 'PVA Performance Evaluation and Improvement Study,' in which Bae Seung-jin, professor of pharmacy at Ewha Womans University, participated as the research director.