A 2-year-old boy with psychomotor retardation, congenital unilateral ptosis, bilateral adducted thumbs, weakness of upper limbs, and Hirschsprung's disease (aganglionosis), with complete agenesis of ...

Chronic spinal muscular atrophy of FSH type affecting a mother and her son and daughter is reported. The relevant literature is reviewed and the relation between this conditon and Kugelberg-Welander ...

Correspondence to Dr Rando Allikmets, Department of Ophthalmology, Columbia University, Edward S. Harkness Eye Institute Research Annex, 635 West 165th Street, Box # 28, New York, NY 10032, USA; rla22 ...