July, J., Yunus, Y., Sungono, V., As’ad, S., Suhadi, B. and Islam, A. A. (2013) “Cortisol dynamics and endothelin-1/nitric oxide ratio are associated with clinical vasospasme”, Medical Journal of Indonesia, 22(3), pp. 161-6. doi: 10.13181/mji.v22i3.585.