RT Journal Article SR Electronic T1 Reducing Pain Associated With Vaccination Through Formula Feeding JF AAP Grand Rounds JO AAP Grand Rounds FD American Academy of Pediatrics SP 34 OP 34 DO 10.1542/gr.41-3-34 VO 41 IS 3 YR 2019 UL http://aapgrandrounds.aappublications.org/content/41/3/34.abstract AB