forty patients with normal gastrointestinal function requiring enteral nutrition were randomized to receive nasogastrically 2-liter/day of polymeric diet ( 2000 kcal , 12 g n ) either from a presterilized 2-liter pvc bag ( express efi ltd , uk ) or from two 1-liter rigid plastic containers filled with cans of clinifeed 400 ( roussel laboratories ltd , uk ) .
C0032521
polymeric
C0032167
plastic