Now showing items 1-2 of 2

    • Fluorescence in situ hybridization studies on the sex chromosome constitution of human sperm 

      Dineen, T.; Nolan, A.; Harrington, J.; Greer, A.; Kennedy, R.; Houghton, J. A. (Informa UK Limited, 1997-01-01)
      More males are conceived than females and more males are born as a result of in vitro fertilization (IVF) and donor insemination procedures. All donor sperm samples are frozen for a minimum of 6 months before they are used. ...
    • The epidemiology of down syndrome in four counties in ireland 1981-1990 

      Johnson, Z.; Lillis, D.; Delany, V.; Hayes, C.; Dack, P. (Oxford University Press (OUP), 1996-03-01)
      Background We conducted a descriptive epidemiological study oi Down syndrome (DS) in the four Irish counties (Dublin, Kildare, Wicklow and Galway) covered by EUROCAT registries of congenital malformations for the years ...