RT Journal Article SR Electronic T1 Earlier introduction of solid food is associated with improved sleep in infants JF Archives of disease in childhood - Education & practice edition JO Arch Dis Child Educ Pract Ed FD BMJ Publishing Group Ltd and Royal College of Paediatrics and Child Health SP 251 OP 252 DO 10.1136/archdischild-2019-316960 VO 105 IS 4 A1 Rebecca Amy Dalrymple YR 2020 UL http://ep.bmj.com/content/105/4/251.abstract AB