Reduction of Visual and Auditory Stimuli to Reduce Pain During Venipuncture in Premature Infants.

Inclusion Criteria: * Premature babies born between 32 and 36 weeks of gestation (both included). * Haemodynamically stable. * Require venipuncture and whose. * Parents or legal guardians have signed informed consent forms. Exclusion Criteria: * Gestational age inferior to 32 weeks. * Treated with intravenous or oral analgesics, sedatives or relaxants. * Critical status or haemodynamically unstable. * Requiring invasive mechanical ventilation.