Filtering by: Contributor Estes, E. Harvey (Edward Harvey), 1925- Remove constraint Contributor: Estes, E. Harvey (Edward Harvey), 1925- Location Duke Medical Center Archives Remove constraint Location: Duke Medical Center Archives Subject Nurse Practitioners -- standards Remove constraint Subject: Nurse Practitioners -- standards Subject Professional Role Remove constraint Subject: Professional Role Subject Russ, Donald J. Remove constraint Subject: Russ, Donald J. Year 1980 Remove constraint Year: 1980