4yr old girl died after swallowing lithium battery ..doctors didn't know what was wrong with her

4 year old Summer Steer died in 2013 after
swallowing a small lithium battery - she was
taken to the hospital 3 times after she started
vomiting blood but doctors didn't know what was
wrong with her.
According to ABC News, an inquest heard that
Summer went into cardiac arrest after ingesting
the button-shaped battery on June 30, 2013,
despite doctors telling her mother she would be
fine.