@article{Sham1992,
author = {Sham, P. and O'Callaghan, E. and Takei, N. and Murray, G. and Har, E. and Murray, R.},
title= {Schizophrenia following pre-natal exposure to influenza epidemics between 1939 and 1960},
year = {1992},
doi = {10.1192/bjp.160.4.461},
journal = {British Journal of Psychiatry},
volume = {160},
number = {4},
pages = {461--466},
}