Table 2.

Example of search strategy CINAHL

Search ID#	Search Terms
S9.	S3 AND S8
S8.	S4 OR S5 OR S6 OR S7
S7.	TI (((educat* or knowledge or online or peer or communit* or social* or intervention* or program*) N4 support)) AND AB (((educat* or knowledge or online or peer or communit* or social* or intervention* or program*) N4 support))
S6.	(MH “Support, Psychosocial”)
S5.	(MH “Health Promotion”)
S4.	(MH “Health Education”)
S3.	S1 OR S2
S2.	TI (((express* or pump* or indirect*) N3 (milk* or breastmilk*))) OR AB (((express* or pump* or indirect*) N3 (milk* or breastmilk*)))
S1.	(MH “Milk Expression”)