1. A biologic and genetic study of 40 cases of severe pure mental retardation

   • J. M. Becker
   • E. G. Kaveggia
   • J. M. Opitz

   OriginalPaper Pages: 231 - 256

2. Absence of spermatogonia in the Prader-Willi syndrome

   • Murray L. Katcher
   • Gerald J. Bargman
   • John M. Opitz

   OriginalPaper Pages: 257 - 260

3. A metabolic disorder similar to Zellweger syndrome with hepatic acatalasia and absence of peroxisomes, altered content and redox state of cytochromes, and infantile cirrhosis with hemosiderosis

   • H. T. Versmold
   • H. J. Bremer
   • B. Brauser

   OriginalPaper Pages: 261 - 275

4. Cortisone cataract in children with nephrotic syndrome

   • H. J. Bachmann
   • P. Schildberg
   • Th. Waubke

   OriginalPaper Pages: 277 - 283

5. The age-dependence of intestinal absorption using d-xylose as an example

   • G. Heimann
   • B. Roth
   • E. Gladtke

   OriginalPaper Pages: 285 - 294