鼻炎と気管支炎で年間3000万日の損失
Sinusitis, Bronchitis Add Up to 30 Million Missed Work Days, UPMC, Pittsburgh, PA, USA
Sinusitis and bronchitis take a significant toll on a person’s ability to participate in everyday life and have a sizable economic impact, accounting for more than 30 million missed workdays each year
by 小橋昭彦 : 04年10月26日
