1. Abbod, M.F., von Keyserling, D.G., Linken, D.A., Mahfouf, M.: Survey of Utilisation of Fuzzy Technology in Medicine and Healthcare. Fuzzy Sets and Systems 120, 331–349 (2001)
2. Araujo, E., dos Santos Coelho, L.: Piecewise Reference–driven Takagi-Sugeno Fuzzy Modelling Based on Particle Swarm Optimization (PSO). In: Nedjah, N., de Macedo Mourelle, L. (eds.) Systems Engineering using Particle Swarm Optimization, p. 133. Nova Science Publishers Inc., Hauppauge (2007)
3. Araujo, E., Miyahira, S.A.: Unidimensional Fuzzy Pain Scale. In: International Conference on Fuzzy Systems, pp. 185–190 (2009)
4. Araujo, E.: Introduction to Fuzzy Logic and Approximate Reasoning, Course Class Notes (Apostile), São José dos Campos (1994, 1995, 2005)
5. Araujo, E., Lazzareschi, L.: Fuzzy pain assessment in musculoskeletal disorder (2011) (Chapter in this volume)