my @lines = (
  "110. Wunder, E.; Burghardt, U.; Lang, B.; Hamilton, L.: Fanconi's",
  "anemia: anomaly of enzyme passage through the nuclear membrane? Anomalous",
  "intracellular distribution of topoisomerase activity in placental",
  "extracts in a case of Fanconi's anemia. Hum. Genet. 58: 149-155,",
  "1981.",
  "",
);