Number	Search terms
#1	phone*
#2	telephon*
#3	telefon*
#4	telephone intervention
#5	call
#6	calls
#7	calling
#8	telemedicine
#9	teleconsult*
#10	telecounsel*
#11	Telephone[MeSH]
#12	Hotlines[MeSH]
#13	Cellular phone[MeSH]
#14	Cellular phone
#15	Mobile phone
#16	Cell phone
#17	#1 OR #2 OR #3 OR #4 OR #5 OR #6 OR #7 OR #8 OR #9 OR #10 OR #11 OR #12 OR #13 OR #14 OR #15 OR #16
#18	HIV Infections[MeSH]
#19	HIV[MeSH]
#20	hiv[tw]
#21	hiv‐1*[tw]
#22	hiv‐2*[tw]
#23	hiv1[tw]
#24	hiv2[tw]
#25	hiv infect*[tw]
#26	human immunodeficiency virus[tw]
#27	human immunedeficiency virus[tw]
#28	human immune‐deficiency virus[tw]
#29	((human immun*) AND(deficiency virus[tw]))
#30	“Acquired Immunodeficiency Syndrome”[MeSH]
#31	acquired immunodeficiency syndrome[tw]
#32	acquired immunedeficiency syndrome[tw]
#33	acquired immuno‐deficiency syndrome[tw]
#34	acquired immune‐deficiency syndrome[tw]
#35	((acquired immun*) AND (deficiency syndrome[tw]))
#36	#18 OR #19 OR #20 OR #21 OR #22 OR #23 OR #24 OR #25 OR #26 OR #27 OR #28 OR #29 OR #30 OR #31 OR #32 OR #33 OR #34 OR #35
#37	# 17 AND # 36