1. Chromosome abnormalities and season of birth

   • P. Videbech
   • J. Nielsen

   Original Investigations Pages: 221 - 231

2. Apolipoprotein E phenotypes and hyperlipidemia

   • G. Utermann
   • I. Kindermann
   • A. Steinmetz

   Original Investigations Pages: 232 - 236

3. Apolipoprotein E phenotypes in patients with myocardial infarction

   • G. Utermann
   • A. Hardewig
   • F. Zimmer

   Original Investigations Pages: 237 - 241

4. Reactivity pattern of 15 HLA-Dw1 homozygous typing cells in primary mixed lymphocyte culture

   • E. M. Schneider
   • U. Krupp
   • Ch. Rittner

   Original Investigations Pages: 242 - 247

5. Prenatal diagnosis of cystic fibrosis by assay of amniotic fluid microvillar enzymes

   • D. J. H. Brock
   • D. Bedgood
   • Caroline Hayward

   Original Investigations Pages: 248 - 251

6. Familial thrombocytopenia associated with platelet autoantibodies and chromosome breakage

   • F. M. Helmerhorst
   • D. C. Heaton
   • A. T. Natarajan

   Original Investigations Pages: 252 - 256

7. Chromosome assignment of two cloned DNA probes hybridizing predominantly to human sex chromosomes

   • Gudrun A. Rappold
   • T. Cremer
   • H. J. Cooke

   Original Investigations Pages: 257 - 261

8. Identification of cells from fetal bladder epithelium in human amniotic fluid

   • Harriet von Koskull
   • P. Aula
   • I. Virtanen

   Original Investigations Pages: 262 - 267

9. Properties of α-l-iduronidase in cultured skin fibroblasts from α-l-iduronidase-deficient patients

   • S. Fujibayashi
   • R. Minami
   • S. Tsugawa

   Original Investigations Pages: 268 - 272

10. A simple method for high resolution banding of chromosomes in amniotic fluid cells

    • Petra Jäger
    • Claudia Kuhn-Schlage

    Original Investigations Pages: 273 - 277

11. Detection of H-Y in the enzyme-linked immunosorbent assay

    • Claire-Michele Farber
    • Daniel Liebenthal
    • Charlotte Cunningham-Rundles

    Original Investigations Pages: 278 - 279

12. Characterization of the distribution of sister chromatid exchange frequencies: Implications for research design

    • Betsy Hirsch
    • M. McGue
    • J. Cervenka

    Original Investigations Pages: 280 - 286

13. Transferase-deficiency galactosemia: Immunochemical studies of the Duarte and Los Angeles variants

    • M. W. Andersen
    • V. P. Williams
    • R. S. Sparkes

    Original Investigations Pages: 287 - 290

14. Assignment of the gene for cystathionine β-synthase to human chromosome 21 in somatic cell hybrids

    • Flemming Skovby
    • Natalie Krassikoff
    • Uta Francke

    Original Investigations Pages: 291 - 294

15. Old and new genetics help ordering loci at the telomere of the human X-chromosome long arm

    • M. Purrello
    • R. Nussbaum
    • M. Siniscalco

    Original Investigations Pages: 295 - 299

16. Hemoglobins S and C in Upper Volta

    • D. Labie
    • C. Richin
    • R. L. Nagel

    Original Investigations Pages: 300 - 302

17. α-Globin gene deletions associated with α^Aand α^{G Philadelphia}genes in an Algerian family that includes two Hb G homozygotes

    • F. Morle
    • P. Jaccoud
    • J. Godet

    Original Investigations Pages: 303 - 307

18. Meiotic studies in two infertile males with autosomal translocations

    • Miroslava Mićić
    • Sava Mićić

    Clinical Case Reports Pages: 308 - 310

19. Trisomy 16q13→qter in a infant from a t (11;16)(q25;q13) translocation-carrier father

    • K. Hatanaka
    • M. Ozaki
    • H. Fujita

    Clinical Case Reports Pages: 311 - 315

20. Announcement

    Announcement Pages: 316 - 316