| 976 / | HD | NUCLEAR TECHNOLOGY |
| DIG 421 | | APPLICATIONS OF RADIATION FROM RADIOACTIVE SOURCES OR ARRANGEMENTS THEREFOR [G21H-5/00] *** {1} |
| DIG 422 | DD | .~> As tracers [G21H-5/02] *** (medicinal preparations containing radioactive substances A61K-43/00; investigating or analyzing biological material G01N-33/16) |