1
by Jonsen, Albert R.
Published 1993
National Academy Press
...National Center for Biotechnology Information...

2
Published 1999
National Academy Press
...National Center for Biotechnology Information...

3
by Bulger, Ruth Ellen
Published 1995
National Academy Press
...National Center for Biotechnology Information...

4
by Mastroianni, Anna C.
Published 1994
National Academy Press
...National Center for Biotechnology Information...