#1	"Atrial Fibrillation"[Mesh] OR "atrial fibrillation"[tiab] OR (atrial[tiab] AND fibrillation[tiab]) OR afib[tiab] OR "atrial flutter"[MeSH Terms] OR "atrial flutter"[tiab]
#2	"Anticoagulants"[Mesh] OR "Anticoagulants"[Pharmacological Action] OR warfarin[tw] OR "Warfarin"[Mesh] OR coumadin[tw] OR "Vitamin K/antagonists and inhibitors"[Mesh] OR vitamin k[tw] OR "Heparin"[Mesh] OR "Enoxaparin"[Mesh] OR enoxaparin[tw] OR lovenox[tw] OR "rivaroxaban" [Supplementary Concept] OR rivaroxaban[tw] OR xarelto[tw] OR "dabigatran etexilate" [Supplementary Concept] OR dabigatran[tw] OR pradaxa[tw] OR heparin[tw] OR "apixaban" [Supplementary Concept] OR apixaban[tw] OR eliquis[tw] OR "edoxaban" [Supplementary Concept] OR edoxaban[tw] OR lixiana[tw]
#3	"Surgical Procedures, Operative"[Mesh] OR /surgery[mesh] OR ((surgical[tw] OR invasive[tw]) AND (procedure[tw] OR procedures[tw])) OR "dental care"[MeSH Terms] OR (dental[tw] AND (procedure[tw] OR procedures[tw])) OR surgery[tw] OR procedures[tiab] OR procedure[tiab]
#4	#1 AND #2 AND #3
#5	"evaluation studies"[Publication Type] OR "evaluation studies as topic"[MeSH Terms] OR "evaluation study"[tw] OR evaluation studies[tw] OR "intervention studies"[MeSH Terms] OR "intervention study"[tw] OR "intervention studies"[tw] OR "case-control studies"[MeSH Terms] OR "case-control"[tw] OR "cohort studies"[MeSH Terms] OR cohort[tw] OR "longitudinal studies"[MeSH Terms] OR "longitudinal"[tw] OR longitudinally[tw] OR "prospective"[tw] OR prospectively[tw] OR "retrospective studies"[MeSH Terms] OR "retrospective"[tw] OR "follow up"[tw] OR "comparative study"[Publication Type] OR "comparative study"[tw] OR systematic[subset] OR "meta-analysis"[Publication Type] OR "meta-analysis as topic"[MeSH Terms] OR "meta-analysis"[tw] OR "meta-analyses"[tw] OR randomized controlled trial[pt] OR controlled clinical trial[pt] OR randomized[tiab] OR randomised[tiab] OR randomization[tiab] OR randomisation[tiab] OR placebo[tiab] OR "drug therapy"[Subheading] OR randomly[tiab] OR trial[tiab] OR groups[tiab] OR Clinical trial[pt] OR "clinical trial"[tw] OR "clinical trials"[tw] NOT (Editorial[ptyp] OR Letter[ptyp] OR Case Reports[ptyp] OR Comment[ptyp])
#6	#5 AND #4
#7	#7 NOT (animals[mh] NOT humans[mh]), Limits: English, Publication Date from 2000 to present