PREVALENCE OF POTASSIUM, PHOSPHORUS AND CALCIUM IMBALANCE IN VERY-LOW-BIRTHWEIGHTPRETERM INFANTS RECEIVING PARENTERAL NUTRITION FROM THE FIRST DAY OF LIFE

PREVALENCE OF POTASSIUM, PHOSPHORUS AND CALCIUM IMBALANCE IN VERY-LOW-BIRTHWEIGHTPRETERM INFANTS RECEIVING PARENTERAL NUTRITION FROM THE FIRST DAY OF LIFE