TY - JOUR AU - Yiallourides, M; Savoia, M; May, J TI - Tibial speed of sound in term and preterm infants JO - Biol Neonate VL - 85 PY - 2004 DO - 10.1159/000076004 L3 - PubMed-ID: 14707429 SP - 225 EP - 228 N1 - et al. ER -