1. Frequency of inborn errors of metabolism, especially PKU, in some representative newborn screening centers around the world

   • O. Thalhammer

   Reviews Pages: 273 - 286

2. A subtelocentric chromosome 9 in a dysplastic 18-year-old boy with dissociated mental development

   • I. Hansmann
   • J. Keute

   Original Investigations Pages: 287 - 289

3. The Bf locus in the HLA region of chromosome 6: Linkage and association studies

   • B. Olaisen
   • P. Teisberg
   • E. Thorsby

   Original Investigations Pages: 291 - 296

4. Obtention simultanée de plusieurs marquages chromosomiques sur les mêmes préparations, après traitement par le BrdU

   • B. Dutrillaux

   Original Investigations Pages: 297 - 306

5. Trisomy 9p due to paternal translocation, t(9;13)(q13;q12)

   • A. Schinzel
   • K. Hayashi
   • W. Schmid

   Original Investigations Pages: 307 - 316

6. Sister chromatid exchanges and chromatid interchanges in Bloom's syndrome

   • Traute M. Schroeder

   Original Investigations Pages: 317 - 323

7. A technique for in situ Karyotyping of primary amniotic fluid cell cultures

   • W. Schmid

   Original Investigations Pages: 325 - 330

8. Climate associated variations in the human serum albumin level

   • H. Walter
   • B. Schöbel

   Original Investigations Pages: 331 - 335

9. DNA replication patterns of human C group chromosomes from fibroblasts and amniotic fluid cells revealed by a Giemsa staining technique

   • J. T. Epplen
   • W. Vogel

   Short Communications Pages: 337 - 339

10. Contribution to the genetics of serum β-lipoproteins in man

    • G. Morganti
    • P. B. Beolchini
    • A. Vierucci

    Short Communications Pages: 341 - 342

11. Cytological and cytogenetical studies on brain tumors

    • H. Zankl
    • A. F. Weiss
    • K. D. Zang

    Short Communications Pages: 343 - 348

12. A comment to the paper: Dermatoglyphic analysis as a diagnostic tool in wilson disease?

    • T. J. David
    • A. B. Ajdukiewicz

    Letters to the Editor Pages: 349 - 349