Sg. Vorsanova et al., CYTOGENETIC AND MOLECULAR-GENETIC DIAGNOSTICS OF RETT-SYNDROME IN CHILDREN, Zurnal nevropatologii i psihiatrii im. S.S. Korsakova, 98(4), 1998, pp. 53-56
Rett syndrome in 32 children (31 girls and 1 boy) was diagnosed accord
ing to International association on Rett syndrome. The phenomenon of t
he presence of special type of late-replicating chromosome X (type C)
was revealed, This phenomenon may be recommended as a diagnostic test
for both preclinical period of development of the disease and in atypi
cal cases of Rett syndrome.