Objective identification of pain due to uterine contraction during the first stage of labour using continuous EEG signals and SVM by Sai, Chong Yeh, Mokhtar, Norrima, Yip, Hing Wa, Bak, Lindy Li Mei, Hasan, Mohd Shahnaz, Arof, Hamzah, Cumming, Paul, Mat Adenan, Noor Azmi