The difference "is pretty jaw-dropping at the moment," lead researcher Dr Ragini Verma, a professor of radiology at the university, told Reuters in a phone interview.
Umehluko "uyamangaza kakhulu okwamanje," kusho umholi wabacwaningi uDkt Ragini Verma, ongupholofesa emkhakheni weradiyoloji enyunivesithi, etshela i-Reuters enkulumweni yocingo.