Method: the data from the Third NationalHealthServices Survey were used to compare the medical expenditure of male and female patients.
方法:利用第三次国家卫生服务调查资料对两性患者的医疗费用支出进行比较分析。
2
As the UK NationalHealthServices explains, for years, dermatologists have been noticing that people who have had acne show signs of ageing later than those who have never had the skin condition.