作者: H. L. RATCLIFFE , M. T.I. CRONIN
关键词:
摘要: From 1901 through 1932 arteriosclerosis was found in less than 3 per cent of autopsies on mammals and birds at the Philadelphia Zoological Garden, but thereafter its frequency has increased to about 20 cent. This study attempted identify factors that may be associated with this change frequency.