tokens: The association of 20q deletions with myeloid "stem cell" disorders suggests that the deletions mark the site of one or more genes , loss or inactivation of which plays a role in the regulation of normal hematopoietic progenitors .
folded_tokens: the association of 20q deletions with myeloid "stem cell" disorders suggests that the deletions mark the site of one or more genes , loss or inactivation of which plays a role in the regulation of normal hematopoietic progenitors .
labels: O O O B-DNA_domain_or_region I-DNA_domain_or_region O B-other_name I-other_name I-other_name I-other_name O O O O O O O O O O O O O O O O O O O O O O O O O B-cell_type I-cell_type I-cell_type O