1999c-024 allergyandimmunology apoptosis cancer cancercells cellcycle celldifferentiation cellproliferation cellularcontrolmechanisms cellularsignaltransduction congresses crystalline crystallinelens cyclicadenylicacid cyclicamp cytogeneticanalysis cytogenetics cytology drosophilamelanogaster epithelialcells epithelium etiology experimental geneexpressionregulation genetics immunopathology laboratorymanuals laboratorytechniquesandprocedures lens leukemia medicaloncology metabolism methods mitosis molecularaspects neoplasms newts physiology proliferation qh604c3921981 qh604m71741999 qh605 qh605m682b1971 qu58c9951973 qx25d78682004 qz202c776g1969 qz266c3931982 rc261 regeneration regeneration(biology) signaltransduction therapy urodela