tokens: The M-CSF gene was expressed in 6 cases and the FMS and the EGR-1 genes were expressed in 2 of the latter cases .
folded_tokens: the m-csf gene was expressed in 6 cases and the fms and the egr-1 genes were expressed in 2 of the latter cases .
labels: O B-DNA_domain_or_region I-DNA_domain_or_region O O O O O O O B-DNA_domain_or_region O O B-DNA_domain_or_region O O O O O O O O O O