Nonspecific X-linked mental retardation—A review Gholamali TariverdianBarbara Weck Review Articles Pages: 95 - 109
G6PD-Puerto Limón: A new deficient variant of glucose-6-phosphate dehydrogenase associated with congenital nonspherocytic hemolytic anemia J. ElizondoG. F. SáenzM. Estrada Original Investigations Pages: 110 - 112
Tiny interstitial duplication of proximal 7q in association with a maternal paracentric inversion J. J. HooR. LorenzW. Fuhrmann Original Investigations Pages: 113 - 116
Study on segregation of the inversion of chromosome 4 (p15.2q11) in two unrelated families Carlo BaccichettiRomano TenconiLivio Bortotto Original Investigations Pages: 117 - 120
Polymorphism of the Hinf I restriction site located 1 Kb 5′ to the human β-globin gene Gila KohenNoël PhilippeJacqueline Godet Original Investigations Pages: 121 - 123
Hereditary retinoblastoma: Lack of maternal effect E. Matsunaga Original Investigations Pages: 124 - 128
Parental origin of chromosome abnormalities in spontaneous abortions Gitta H. M. MeulenbroekJoep P. M. Geraedts Original Investigations Pages: 129 - 133
Seasonality of pre-ovulatory non-disjunction and the aetiology of Down syndrome. A European collaborative study P. H. JongbloetAnneMartijn MulderA. J. Hamers Original Investigations Pages: 134 - 138
PI (α1-antitrypsin) subtypes: Frequency of PI*M4 in several populations E. C. KlasenAnja BosH. D. Simmelink Original Investigations Pages: 139 - 141
Genetic analysis of human lymphocyte proteins by two-dimensional gel electrophoresis: 3. Frequent occurrence of genetic variants in some abundant polypeptides of PHA-stimulated peripheral blood lymphocytes Hideo HamaguchiMichiko YamadaIkuko Kondo Original Investigations Pages: 142 - 147
Genetic analysis of human lymphocyte proteins by two-dimensional gel electrophoresis: 4. Genetic polymorphism of cytosol 100k polypeptide Hideo HamaguchiMichiko YamadaIkuko Kondo Original Investigations Pages: 148 - 151
Distribution of physiological adult lactase phenotypes, lactose absorber and malabsorber, in Germany G. FlatzJ. N. HowellS.D. Flatz Original Investigations Pages: 152 - 157
Distribution of human adult lactase phenotypes in the population of Austria W. RosenkranzB. HadornG. Flatz Original Investigations Pages: 158 - 161
Frequency of the ESD*5 allele in three ethnic groups in Minnesota Dale D. DykesHerbert F. PoleskyShirley Miller Original Investigations Pages: 162 - 163
Mapping the α-globin genes in HB J Mexico carriers G. TrabuchetF. MorleV. M. Nigon Original Investigations Pages: 164 - 166
Paternal age and Down's syndrome genotypes diagnosed prenatally: No association in New York State data Ernest B. HookPhilip K. Cross Original Investigations Pages: 167 - 174
A Hind III restriction site polymorphism in the human collagen α1(I)-like gene on chromosome No. 7 Albert J. DrieselAnna M. SchumacherRichard A. Flavell Short Communications Pages: 175 - 176
A foetal alpha-1 antitrypsin which resembles PI*I Peggy ClarkP. Doyle Short Communications Pages: 177 - 179
Regional mapping of the locus for hexokinase-1 (HK1) Mauro MagnaniBruno Dallapiccola Letters to the Editors Pages: 181 - 181