Table 1.

PubMed search strategy.

Number	Search items
#1	“moxibustion” [Title/Abstract] or “direct moxibustion” [Title/Abstract] or “indirect moxibustion” [Title/Abstract] or “separated moxibustion” [Title/Abstract] or “moxibustion therapy” [Title/Abstract] or “warm acupuncture” [Title/Abstract]
#2	“COVID 19” [Title/Abstract] or “2019-nCoV” [Title/Abstract] or “coronavirus disease 19” [Title/Abstract] or “coronavirus disease 2019” [Title/Abstract] or “disease 2019 coronavirus” [Title/Abstract] or “sars coronavirus 2 infection” [Title/Abstract] or “SARS-CoV-2” [Title/Abstract]
#3	“abdominal pain” [Title/Abstract] or “abdomen” [Title/Abstract] or “Epigastric pain” [Title/Abstract] or “Lower abdominal pain” [Title/Abstract] or “stomachache” [Title/Abstract] or “bellyache” [Title/Abstract] or “celialgia” [Title/Abstract] or “mulligrubs” [Title/Abstract]
#4	“Randomized controlled trial” [Title/Abstract] or “Controlled clinical trial” [Title/Abstract] or “clinical tria lrandomized” [Title/Abstract]
#5	#1 and #2 and #3 and #4