A. Specific Aims Premature infants admitted to the neonatal intensive care unit (NICU) require up to several hundred procedures during their hospitalization. Many of these are tissue-damaging procedures (TDPs) known to cause pain [1]. Through funding from NINR, the investigators found that TDPs not only caused pain but also increased markers of ATP degradation and oxidative stress[2[. The TDP was tape removal, a commonly performed procedure in the NICU2.