Filtering by: Contributor Estes, E. Harvey (Edward Harvey), 1925- Remove constraint Contributor: Estes, E. Harvey (Edward Harvey), 1925- Contributor Fagg, John A. Remove constraint Contributor: Fagg, John A. Contributor Mauney, F. Maxton Remove constraint Contributor: Mauney, F. Maxton Contributor Nelson, David S. Remove constraint Contributor: Nelson, David S. Location Duke Medical Center Archives Remove constraint Location: Duke Medical Center Archives Subject Estes, E. Harvey (Edward Harvey), 1925- Remove constraint Subject: Estes, E. Harvey (Edward Harvey), 1925- Subject Nelson, Davis S. Remove constraint Subject: Nelson, Davis S. Subject Nurse Practitioners -- standards Remove constraint Subject: Nurse Practitioners -- standards