TY - GEN AU - Falchi,A M AU - Orofino,M G AU - Nucaro,A L AU - De Virgiliis,S AU - Cao,A TI - Acute lymphoblastic leukemia in a child with constitutional ring chromosome 21 SN - 0165-4608 PY - 1987///0807 KW - Adolescent KW - Chromosome Aberrations KW - Chromosomes, Human, Pair 21 KW - Genetic Markers KW - Humans KW - Karyotyping KW - Leukemia, Lymphoid KW - genetics KW - Male KW - Pedigree KW - Ring Chromosomes N1 - Publication Type: Case Reports; Journal Article UR - https://doi.org/10.1016/0165-4608(87)90003-3 ER -