| 0622 | Comparison of academic performance of twins and singletons in adolescence: follow-up study | Christensen K, Petersen I, Skytthe A, Herskind AM, McGue M, Bingley P | Denmark |
| 0919 | Association between Antibiotic Prescribing in Pregnancy and Cerebral Palsy or Epilepsy in Children Born at Term: A Cohort Study Using The Health Improvement Network. | Meeraus WH, Petersen I, et al. | UK |
| 0937 | Association between antibiotic prescribing in pregnancy and cerebral palsy or epilepsy in children born at term: a cohort study using the health improvement network. | Meeraus WH, Petersen I, Gilbert R | UK |