RT Journal Article SR Electronic T1 Percutaneous endoscopic gastrostomy insertion: are we getting better? JF Clinical Medicine JO Clin Med FD Royal College of Physicians SP 643 OP 644 DO 10.7861/clinmedicine.10-6-643 VO 10 IS 6 A1 Thean S Chew A1 Wael Sumaya A1 Charles EF Grimley YR 2010 UL http://www.rcpjournals.org/content/10/6/643.abstract