Table 1.

Search strategy sample of PubMed.

Number	Searches
#1	randomized controlled trial[MeSH Terms]
#2	autism spectrum disorder[MeSH Terms]
#3	autism spectrum disorder[Text Word]
#4	neurodevelopmental disorder[MeSH Terms]
#5	neurodevelopmental disorder[Text Word]
#6	or/#2–5
#7	complementary and alternative medicine[MeSH Terms]
#8	acupuncture[MeSH Terms]
#9	melatonin[MeSH Terms]
#10	L-Carnosine[MeSH Terms]
#11	N-acetylcysteine[MeSH Terms]
#12	Omega-3 fatty acids[MeSH Terms]
#13	vitamin[MeSH Terms]
#14	tetrahydrobiopterin[MeSH Terms]
#15	hyperbaric oxygen therapy[MeSH Terms]
#16	chelation therapy[MeSH Terms]
#17	or/#7–6
#18	#1and#6and#17