| 0060 | Risk of schizophrenia in adults born after obstetric complications and their association with early onset illness: a control study | O'Callaghan E, Gibson T, et al. | Ireland |
| 0062 | Familial obstetric and other clinical correlates of minor physical anomalies in schizophrenia | O'Callaghan E, Larkin C, et al. | Ireland |
| 0063 | Season of birth in schizophrenia: evidence for confinement of an excess of winter births to patients without a family history of mental disorder | O'Callaghan E, Gibson T, et al. | Ireland |
| 0065 | Schizophrenia following prenatal exposure to influenza epidemics between 1937 and 1960 | Sham PC, O'Callaghan E, et al. | England and Wales |