Massachusetts General Hospital (MGH) is considered one of the top hospitals in the nation. Researchers discovered about half of the surgeries performed at this institution have administered medications by error or with unintended side effects. These findings are even more likely to be found at other U.S. hospitals. In 2013-2014 researchers at MGH observed and discovered that 124 of the 227 procedures included at least one medication error or drug-related incident that harmed the patient. According to this study, the most frequent errors were due to mislabeling, incorrect dosages, and medications unnecessarily administered.