29972
Faced with an epidemic of cocaine use by pregnant mothers who were potentially putting their babies at risk , the medical staff at this Charleston , South Carolina , hospital came up with a novel idea -- decide which of the pregnant where things went wrong .
 Charleston, South Carolina
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: date, organization, person, geographical social political, national religious political, facility, cardinal, location, work of art, law, event, product, ordinal, percent, time, quantity, money, language 
Text: {0} 
Answer:
 Charleston, South Carolina