From 1987 to 1995 he was an investigator at the Howard Hughes Medical Institute.

He has been an investigator of the Howard Hughes Medical Institute since 1991.

In 1987, he took over leadership of the Howard Hughes Medical Institute.

He was an investigator with the Howard Hughes Medical Institute from 1990 to 2001.

A new site from the Howard Hughes Medical Institute could help to change all that.

From 1984 to 1991, he was also an investigator for the Howard Hughes Medical Institute.

He was appointed to the Howard Hughes Medical Institute in 1986.

He is also an investigator at the Howard Hughes Medical Institute.

One place they turn for financial help is the Howard Hughes Medical Institute.

"His dream is have a foundation as large or larger than the Howard Hughes Medical Institute."