Negligence – Causation. The Queen's Bench Division dismissed the claimant's claim for breach of duty against the defendant hospital in respect of a failure to give corticosteroid drugs to the claimant's mother, H, before her delivery by emergency Caesarean section. It found that the failure to give the drugs did not cause or materially contribute to her developing post-natal Respiratory Distress Syndrome (RDS) as a result of which she required mechanical ventilation.