| 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 227 | DD | .~.~ Animal cell (935/102) {1} |
| FOR 228 | DD | .~.~.~ Murine cell, e.g., mouse cell, etc. (935/103) {2} |
| FOR 229 | | .~.~.~.~ B lymphocyte (935/104) |