1. Department of Neurosurgery, Universitas Airlangga – Dr. Soetomo General Academic Hospital, Surabaya, Indonesia.
2. Department of Anatomical Pathology, Universitas Airlangga – Dr. Soetomo General Academic Hospital, Surabaya, Indonesia.
3. Department of Urology, Universitas Airlangga – Dr. Soetomo General Academic Hospital, Surabaya, Indonesia.