TY - JOUR A1 - Stene, J. A1 - Stene, E. A1 - Stengel-Rutkowski, S. A1 - Murken, J.D. T1 - Paternal age and Down’s syndrome data from prenatal diagnosis Y1 - 1981 DO - 10.1007/BF00293059 JF - Human Genetics VL - 59 IS - 2 SP - 119 EP - -124 ER -