A Caesarean section is a type of surgery used to deliver a baby through an incision in the mother's abdomen.
As medical oxygen dwindles in Ukrainian hospitals, the WHO has called for setting up a safe transit route through neighboring Poland.
The impact crater is more than a mile wide.
A rare gold Roman coin featuring the bearded face of Emperor Volusianus, a young ruler who was assassinated by his own soldiers, has been found in Hungary.