Schouw, R.H.J.A.

children group threshold study surgery control model difference patient infant morphine pain thresholds alteration effect pain exposure sensitivity pain sensitivity detection fitzgerald m hypersensitivity exposure chapter tissue damage fitzgerald temperature stimuli anand response development score month preterm neonate location anand kj birth table pain perception damage tissue postoperative term alterations result van dijk m control children testing change pain group animal hospital 0.00 brain contralateral side finding contralateral admission birth weight intensity br j anaesth child system processing j comp neurol perception surgery group experience reflex nerve value pain threshold stress hyposensitivity analgesia animal studies parent duration procedure suprapain weight dermatome