Developmental changes in pain expression in premature, full-term, two- and four-month-old infants.

Abstract

The purpose of this study was to examine the behavioural responses of infants to pain stimuli across different developmental ages. Eighty infants were included in this cross-sectional design. Four subsamples of 20 infants each included: (1) premature infants between 32 and 34 weeks gestational age undergoing heel-stick procedure; (2) full-term infants… (More)

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@article{Johnston1993DevelopmentalCI, title={Developmental changes in pain expression in premature, full-term, two- and four-month-old infants.}, author={Chris J. C. Johnston and Beth Stevens and K. D. Craig and Ruth V.E. Grunau}, journal={Pain}, year={1993}, volume={52 2}, pages={201-8} }