Not only did Kay make a mistake by missing the diagnosis of placenta praevia .
He had previously slightly cut the cheek of a newborn baby during a caesarean , mainly due to lack of sleep during his night shift .
Not only did Kay make a mistake by missing the diagnosis of placenta praevia , but he had previously slightly cut the cheek of a newborn baby during a caesarean , mainly due to lack of sleep during his night shift .