1. Assessing children's responses to pain;Abu-Saad;Pain,1984
2. Barr RG, Rotman A, Yaremko J et al: The crying of infants with colic: a controlled empirical description. Pediatrics (in press)
3. Facial displays of fear, sadness and pain;Boucher;Percep Mot Skills,1969
4. Assessing the psychological profile of the chronic pain patient;Bradley,1988
5. Do different types of chronic pain require different measurement technologies?;Bradley,1989