(CNN) -- When Amanda Berry screamed Monday evening for help through a crack in the front door of the house where she was being held, she set in motion an end to roughly a decade of captivity for herself and two other women. 

Berry's case had been publicized through the years, and when Georgina DeJesus was reported missing, her case, too, became known to the public. Little has been reported about the case of Michelle Knight. 

According to Cleveland's MetroHealth Medical Center, all three women were seen in the hospital's emergency room Monday night and had been released as of Tuesday morning. 

What had happened to them -- physically, emotionally, mentally -- in the years before, though, largely remains a mystery. 

Here's more information about Berry, DeJesus and Knight and their disappearances: 

Amanda Berry 

Age: 16 when she was reported missing; now, 27. 

Missing since: April 21, 2003 

Last seen: walking home from a job at Burger King a few blocks from her home about 7:40 p.m., according to the FBI. It was the eve of her 17th birthday. 

Clues: She called her sister to tell her she was getting a ride home, CNN affiliate WJW reported. 

Appearance: The FBI missing person poster described her as 5 feet 1 inch to 5 feet 3 inches tall and weighing 105 pounds. 

Law enforcement action: The FBI had 10 postings on its website about her disappearance and offered a reward of up to $25,000 for information about her whereabouts. 

Family reaction: It was a call she'd been waiting a decade for. 
Was there a reward?
offered a reward of up to $25,000 