CENTRAL	PubMed	EMBASE (Ovid)
#1 MeSH descriptor Neoplasms explode all trees #2 cancer* OR malignan* OR premalignan* OR neoplasm OR carcinoma* OR dysplasia OR tumor* OR tumour* OR precancer* #3 (#1 OR #2) #4 MeSH descriptor Larynx explode all trees #5 MeSH descriptor Laryngeal Diseases explode all trees #6 laryn* OR vocal cord* OR cordal OR glott* OR throat OR voice box OR subglotti* OR supraglotti* #7 (#4 OR #5 OR #6) #8 (#3 AND #7) #9 MeSH descriptor Laryngeal Neoplasms explode all trees #10 (#8 OR #9) #11 MeSH descriptor Radiotherapy explode all trees #12 irradiat*:ti OR radiotherap*:ti OR radiation:ti #13 MeSH descriptor Surgical Procedures, Operative explode all trees #14 MeSH descriptor Otorhinolaryngologic Surgical Procedures explode all trees #15 MeSH descriptor Microsurgery explode all trees #16 MeSH descriptor Surgical Procedures, Minimally Invasive explode all trees #17 MeSH descriptor Laser Therapy explode all trees #18 surgery:ti OR surgical*:ti OR laryn*:ti NEAR preserve*:ti OR laryngectom*:ti OR hemilaryngectom*:ti OR excision biops*:ti OR endoscop*:ti OR endolaryngeal:ti OR transoral*:ti OR trans:ti NEXT oral*:ti OR neck:ti NEAR incision:ti OR cordectom*:ti OR vocal:ti NEXT cord:ti NEXT stripping:ti #19 (#11 OR #12 OR #13 OR #14 OR #15 OR #16 OR #17 OR #18) #20 (#10 AND #19)	#1 "Neoplasms" [Mesh] OR (cancer* [tiab] OR malignan* [tiab] OR premalignan* [tiab] OR neoplasm* [tiab] OR carcinoma* [tiab] OR dysplasia [tiab] OR tumor* [tiab] OR tumour* [tiab] OR precancer* [tiab] #2 "Larynx" [Mesh] OR "LARYNGEAL DISEASES" [Mesh] OR laryn* [tiab] OR "vocal cord*" [tiab] OR cordal [tiab] OR glott* [tiab] OR throat [tiab] OR "voice box" [tiab] OR subglotti* [tiab] OR supraglotti* [tiab] #3 #2 AND #1 #4 "LARYNGEAL NEOPLASMS" [Mesh] #5 #4 OR #3 #6 "Radiotherapy" [Mesh] OR irradiat* [tiab] OR radiotherap* [tiab] OR radiation [tiab] #7 "SURGICAL PROCEDURES OPERATIVE" [Mesh] OR "OTORHINOLARYNGOLOGIC SURGICAL PROCEDURES" [Mesh] OR "Microsurgery" [Mesh] OR "SURGICAL PROCEDURES MINIMALLY INVASIVE" [Mesh] OR "laser surgery" [Mesh] #8 surgery [tiab] OR surgical* [tiab] OR (laryn* [tiab] AND preserv* [tiab]) OR laryngectom* [tiab] OR hemilaryngectom* [tiab] OR "excision biops*" [tiab] OR endoscop* [tiab] OR endolaryngeal [tiab] OR transoral* [tiab] OR "trans oral*" [tiab] OR (neck [tiab] AND incision* [tiab]) OR cordectom* [tiab] OR (vocal [tiab] AND cord [tiab] AND stripping [tiab]) #9 #7 OR #8 OR #6 #10 #5 AND #9	1 exp neoplasm/ 2 (cancer* or malignan* or premalignan* or neoplasm* or carcinoma* or dysplasia or tumor* or tumour* or precancer*).ti. 3 exp larynx/ 4 (laryn* or (vocal adj cord*) or cordal or glott* or throat or (voice adj box) or subglotti* or supraglotti*).ti. 5 exp larynx disorder/ 6 1 or 2 7 4 or 3 or 5 8 6 and 7 9 exp larynx tumor/ 10 8 or 9 11 exp radiotherapy/ 12 (irradiat* or radiotherap* or radiation).ti. 13 exp surgery/ or exp EAR NOSE THROAT SURGERY/ or exp Larynx surgery/ or dissection/ or exp endoscopic surgery/ or exp laser surgery/ or exp microsurgery/ or exp excision/ 14 (surgery or surgical* or (laryn* and preserv*) or laryngectom* or hemilaryngectom* or "excision biops*" or endoscop* or endolaryngeal or transoral* or "trans oral*" or (neck and incision*) or cordectom* or (vocal and cord and stripping)).ti. 15 11 or 13 or 12 or 14 16 10 and 15
Web of Science	CINAHL (EBSCO)	ICTRP
#1 TI=(cancer* or malignan* or premalignan* or neoplasm* or carcinoma* or dysplasia or tumor* or tumour* or precancer*) #2 TI=(laryn* or (vocal adj cord*) or cordal or glott* or throat or (voice adj box) or subglotti* or supraglotti*) #3 TI=(irradiat* or radiotherap* or radiation) #4 TI=(surgery or surgical* or (laryn* and preserv*) or laryngectom* or hemilaryngectom* or "excision biops*" or endoscop* or endolaryngeal or transoral* or "trans oral*" or (neck and incision*) or cordectom* or (vocal and cord and stripping)) #5 #2 AND #1 #6 #4 OR #3 #7 #6 AND #5	S1 (MH "Neoplasms+") S2 TX cancer* or malignan* or premalignan* or neoplasm* or carcinoma* or dysplasia or tumor* or tumour* or precancer* S3 S1 or S2 S4 (MH "Larynx+") S5 TI laryn* or vocal or glott* or throat or voice or subglotti* or supraglotti* S6 S4 or S5 S7 S3 and S6 S8 (MH "Laryngeal Neoplasms") S9 S7 or S8 S10 (MH "Radiotherapy+") S11 TI irradiat* OR radiotherap* OR radiation S12 (MH "Surgery, Operative") S13 TI surgery OR surgical* OR (laryn* AND preserv*) OR laryngectom* OR hemilaryngectom* OR (excision AND biops*) OR endoscop* OR endolaryngeal OR transoral* OR (trans AND oral*)OR (neck AND incision*) OR cordectom* OR (vocal AND cord AND stripping) S14 S10 or S11 or S12 or S13 S15 S9 and S14	laryn* AND cancer* OR laryn* AND carcinom* OR laryngec* OR glott* AND cancer* OR glott* AND carcinom* OR voice AND cancer* OR voice AND carcinom* OR vocal AND cancer* OR vocal AND carcinom*