context: Prof. dr. Lim Joey Thay alias Dr. Arif Budianto () is a doctor who is a lecturer in the Faculty of Medicine in the Faculty of Medicine, University of Indonesia (FK-UI), and one of five doctors who made a post mortem on the Heroes of the Revolution victims of the September 30 Movement. [1] [2] [3] Lim Joe Thay learned from two world forensic experts at the time, namely Dr. Robert Houseman from Texas, United States and Dr. Keith Simpson from London, England. He completed his education abroad in 1960  .
question: When did Prof. dr. Lim Joey Thay completed his education abroad?
answers.text: 1960