Complex sentence: The Perth Group was formed in 1981 in Perth, Western Australia by biophysicist Eleni Papadopulos-Eleopulos, emergency physician Valendar F. Turner and Professor of Pathology John Papadimitriou.
Split into simpler sentences: The Perth Group was formed in 1981 in Perth, Western Australia. The three original members are the leader, biophysicist Eleni Papadopulos-Eleopulos, emergency physician Valendar F Turner and Professor of Pathology John Papadimitriou.