Neuregulin 1 strongly implicated as susceptibility gene for   schizophrenia by allelic association study
  This paper has been withdrawn by the authors, due to a possible bias in the twosome approach found by Dr. George Kirov. It seems that the bias has amplified an existing weak signal. The detection of the bias was made possible by the posting of the original data on the preprint server. It was peer review at its best, and confirms in our view the importance of preprint servers. 
Hans W. Moises, Pall Matthiasson, Tomas Zoega, Gaurang Jhala, Liu   Yang, Irving I. Gottesman, Tomas Helgason