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(Hellin law)
4 results
  • Seasonality in Multiple Maternities. [Journal Article]
    Twin Res Hum Genet 2017; 20(6):558-563Fellman J
  • In the 19th century, a series of international statistical congresses introduced common rules for the national demographic registers. This activity contributed to the genesis of statistical research. During the history of twin research, Hellin's law has played a central role because it is an approximately correct association between the rates of multiple maternities. However, it has been mathemat…
  • On the history of Hellin's law. [Historical Article]
    Twin Res Hum Genet 2009; 12(2):183-90Fellman J, Eriksson AW
  • Theorems, proofs, laws and rules are commonly named according to the presumed investigator, but often earlier investigators have contributed substantially to the findings. One example of this is Hellin's law, which was named after Hellin, although he was not the first to discover it. In research on twinning and higher multiple maternities, the law has played a central role because it is approxima…
  • A mathematical model for recurrent twinning. [Journal Article]
    Acta Genet Med Gemellol (Roma) 1990; 39(3):307-16Fellman JO, Eriksson AW
  • In an attempt to improve our understanding of the factors that affect human twinning, we further developed the models given by Hellin (1895) and Peller (1946). The connection between these models and our own model ("Fellman's law") were studied. These attempts have resulted in a more general model, which was then applied to data from Aland Islands (1750-1939), Nmes (1790-1875), Stuttgart (about 1…
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