TY - GEN AU - Schmidt,A TI - Fragile site Xq27 and mental retardation. Clinical and cytogenetic manifestation in heterozygotes and hemizygotes of five kindreds SN - 0340-6717 PY - 1982///1029 KW - Adolescent KW - Adult KW - Age Factors KW - Child KW - Child, Preschool KW - Chromosome Fragile Sites KW - Chromosome Fragility KW - Female KW - Genetic Linkage KW - Genetic Markers KW - Heterozygote KW - Humans KW - Infant KW - Intellectual Disability KW - genetics KW - Lymphocytes KW - cytology KW - Male KW - Metaphase KW - Pedigree KW - Phenotype KW - Sex Chromosomes KW - X Chromosome N1 - Publication Type: Journal Article; Research Support, Non-U.S. Gov't UR - https://doi.org/10.1007/BF00569212 ER -