| 435 / | HD | CHEMISTRY: MOLECULAR BIOLOGY AND MICROBIOLOGY |
| FOR 214 | DD | HYBRID OR FUSED CELL TECHNOLOGY, E.G., HYBRIDOMA, ETC. (935/89) {4} |
| FOR 220 | DD | .~ Fused or hybrid cell per se (935/95) {5} |
| FOR 224 | DD | .~.~ Human cell 935/99) {2} |
| FOR 225 | | .~.~.~ B lymphocyte (935/100) |