Data from: https://archive.ics.uci.edu/ml/datasets/Cardiotocography

Source:

Marques de Sá, J.P., jpmdesa '@' gmail.com, Biomedical Engineering Institute, Porto, Portugal. 
Bernardes, J., joaobern '@' med.up.pt, Faculty of Medicine, University of Porto, Portugal. 
Ayres de Campos, D., sisporto '@' med.up.pt, Faculty of Medicine, University of Porto, Portugal.


Data Set Information:

2126 fetal cardiotocograms (CTGs) were automatically processed and the respective diagnostic features measured. The CTGs were also classified by three expert obstetricians and a consensus classification label assigned to each of them. Classification was both with respect to a morphologic pattern (A, B, C. ...) and to a fetal state (N, S, P). Therefore the dataset can be used either for 10-class or 3-class experiments.

Relevant Papers:

Ayres de Campos et al. (2000) SisPorto 2.0 A Program for Automated Analysis of Cardiotocograms. J Matern Fetal Med 5:311-318