A new chromosome 18 variant in mother and holoprosencephalic child.
D000015:Abnormalities, Multiple / Q000235:genetics; D002869:Chromosome Aberrations; D002902:Chromosomes, Human, 16-18; D002904:Chromosomes, Human, 21-22 and Y; D002906:Chromosomes, Human, 6-12 and X; D005145:Face / Q000002:abnormalities*; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male