| Label | Id | |
|---|---|---|
| histologic study | PROC:AOD | |
| cell culture study | PROC:AOD | |
| tissue culture study | PROC:AOD | |
| culture cell study | PROC:AOD | |
| nonhuman organism study | PROC:AOD | |
| animal offspring study | PROC:AOD | |
| adoption study | PROC:AOD | |
| adoptee study | PROC:AOD | |
| adoptive study | PROC:AOD | |
| household survey | PROC:AOD | |
| household survey | PROC:CHV | |
| organization as study subject | PROC:AOD | |
| program as study subject | PROC:AOD | |
| study design, planning, execution, and result | PROC:AOD | |
| statistical study design | PROC:AOD |