TY - JOUR AU - Patel, A L; Engstrom, J L; Meier, P P; Jegier, B J; Kimura, R E TI - Calculating postnatal growth velocity in very low birth weight (VLBW) premature infants JO - J Perinatol IS - 9 VL - 29 PY - 2009 DO - 10.1038/jp.2009.55 SP - 618 EP - 622 ER -