We especially acknowledge (1998)

by B Harris
Venue:NIH grants GM-39589 (to S.C.H.) and GM-44853 (to G.L.V.), NIH postdoctoral award GM-18621 (to H.H.), and by the Landon T. Clay Research Endowment (Harvard University). S.C.H. is an Investigator in the Howard Hughes Medical Institute. The coordinates of th