Complex sentence: Willmett withdrew from this medical degree program in 1999 and was later accepted into the Graduate Medical Course at the University of Queensland (2001) before withdrawing from that medical degree program in 2003 to pursue business interests.
Split into simpler sentences: Willmett withdrew from this medical degree program in 1999 and was later accepted into the Graduate Medical Course at the University of Queensland (2001). He withdrew from that medical degree program in 2003 to pursue business interests.