1. Sekolah Tinggi Ilmu Kesehatan (STIKes) Kepanjen Malang, Malang, Indonesia.
2. Faculty of Nursing, Universitas Airlangga Surabaya, Surabaya, Indonesia.
3. Department of EMS, Vice Dean for Academic Affair Prince Sultan Bin Abdalziz College for EMS (PSEMS), King Saud University (KSU), Riyadh, Saudi Arabia.
4. College of Nursing, Taibah University, Madinah, Saudi Arabia.
5. Poltekkes Kemenkes Malang, Malang, Indonesia.