中国科学技术信息研究所--国家工程技术数字图书馆

harvard university.(7)

university of california san francisco.(4)

arizona state university.(3)

california institute of technology.(2)

city university of new york.(2)

state university of new york at stony brook.(2)

the university of chicago.(2)

university of california irvine.(2)

university of pittsburgh(2)

university of pittsburgh.(2)

university of toronto (canada).(2)

weill medical college of cornell university.(2)

auburn university.(1)

boston university(1)

columbia university(1)

dartmouth college.(1)

duke university.(1)

emory university.(1)

iowa state university.(1)

mcmaster university (canada).(1)

michigan technological university.(1)

northwestern university(1)

northwestern university.(1)

open university (united kingdom).(1)

princeton university.(1)

purdue university.(1)

sackler school of graduate biomedical sciences (tufts university).$bcell molecular & developmental biology.(1)

simon fraser university (canada)(1)

state university of new york at stony brook(1)

syracuse university.(1)