2011年3月8日星期二
2011年3月4日星期五
Eduardo Porter: .. relative costs and benefits open to them determine their behavior. [#Price.. Everything] Nonfiction http://dld.bz/K7ZA
2011年3月3日星期四
Dr. Jeff Brenner's team reduced medical costs at the hospital by 56%. [@NPRFreshAir Books] @repschrader @RepMikeHonda http://dld.bz/JgwB
2011年2月28日星期一
Eduardo Porter: .. relative costs and benefits open to them determine their behavior. [#Price.. Everything] Economics http://dld.bz/K7ZA
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