Maternal mood and concordant maternal and infant salivary cortisol during heel lance while in kangaroo care - Castral, T. C.; Warnock, F.; Santos, Claudia Benedita dos; Daré, M. F.; Moreira, Ayrton Custódio; Antonini, Sonir Roberto Rauber; Scochi, Carmen Gracinda Silvan (European Journal of Pain, 2015)