CENTRAL	Ovid MEDLINE	EMBASE (Ovid)
#1 MeSH descriptor: [Oropharyngeal Neoplasms] explode all trees #2 MeSH descriptor: [Head and Neck Neoplasms] this term only #3 MeSH descriptor: [Otorhinolaryngologic Neoplasms] explode all trees #4 MeSH descriptor: [Neoplasms] explode all trees #5 cancer* or carcinoma* or neoplas* or tumor* or tumour* or malignan* or SCC #6 #4 or #5 #7 MeSH descriptor: [Oropharynx] explode all trees #8 oropharyn* or mesopharyn* or tonsil* or (head near/3 neck) or "tongue base" #9 #7 or #8 #10 #6 and #9 #11 HNSCC or SCCHN or OP‐SCC or OPSCC #12 #1 or #2 or #3 or #10 or #11 #13 MeSH descriptor: [Deglutition] explode all trees #14 MeSH descriptor: [Deglutition Disorders] this term only #15 swallow* or deglutit* or dysphag* #16 #13 or #14 or #15 #17 MeSH descriptor: [Exercise Therapy] explode all trees #18 MeSH descriptor: [Isometric Contraction] explode all trees #19 MeSH descriptor: [Behavior Therapy] explode all trees #20 (swallow* or deglutit* or dysphag* or neuromuscular or mendelsohn or masako or "neuro muscular") near/3 (exercis* or maneuver* or manoeuvre* or manoeuver* or technique* or treatment* or strateg* or rehab* or therap*) #21 isometric or IOPI or "iowa oral pressure instrument*" or pharyngocise or OPSE or "oropharyngeal swallowing efficiency" #22 nmt or "lingual exercis*" or "effortful swallow*" or "supraglottic swallow" or "super glottic swallow*" or "supra glottic swallow*" #23 (tongue or BOT) near/3 ("range of motion" or ROM or resistance or strength* or holding) #24 (voluntary near/3 (control or maneuver* or manoeuvre* or manoeuver*)) or "bearing down" or "progressive resistance" or "behav* management" or (exercis* near/3 (therap* or regime)) or "therapeutic techniq*" or "behav* therap*" or "larygeal elevat*" #25 #17 or #18 or #19 or #20 or #21 or #22 or #23 or #24 #26 #25 and #16 #27 MeSH descriptor: [Deglutition Disorders] explode all trees and with qualifier(s): [Prevention & control ‐ PC, Rehabilitation ‐ RH, Therapy ‐ TH] #28 #26 or #27 #29 #12 and #28	1 exp Oropharyngeal Neoplasms/ 2 "Head and Neck Neoplasms"/ 3 exp Otorhinolaryngologic Neoplasms/ 4 exp Neoplasms/ 5 (cancer* or carcinoma* or neoplas* or tumor* or tumour* or malignan* or SCC).tw. 6 4 or 5 7 exp Oropharynx/ 8 (oropharyn* or mesopharyn* or tonsil* or (head adj3 neck) or "tongue base").tw. 9 7 or 8 10 6 and 9 11 (HNSCC or SCCHN or OP‐SCC or OPSCC).tw. 12 1 or 2 or 3 or 10 or 11 13 exp Deglutition/ 14 Deglutition Disorders/ 15 (swallow* or deglutit* or dysphag*).tw. 16 13 or 14 or 15 17 exp Exercise Therapy/ 18 exp Isometric Contraction/ 19 exp Behavior Therapy/ 20 ((swallow* or deglutit* or dysphag* or neuromuscular or mendelsohn or masako or "neuro muscular") adj3 (exercis* or maneuver* or manoeuvre* or manoeuver* or technique* or treatment* or strateg* or rehab* or therap*)).tw. 21 (isometric or IOPI or "iowa oral pressure instrument*" or pharyngocise or OPSE or "oropharyngeal swallowing efficiency").tw. 22 (nmt or "lingual exercis*" or "effortful swallow*" or "supraglottic swallow" or "super glottic swallow*" or "supra glottic swallow*").tw. 23 ((tongue or BOT) adj3 ("range of motion" or ROM or resistance or strength* or holding)).tw. 24 ((voluntary adj3 (control or maneuver* or manoeuvre* or manoeuver*)) or "bearing down" or "progressive resistance" or "behav* management" or (exercis* adj3 (therap* or regime)) or "therapeutic techniq*" or "behav* therap*" or "larygeal elevat*").tw. 25 17 or 18 or 19 or 20 or 21 or 22 or 23 or 24 26 16 and 25 27 exp Deglutition Disorders/pc, rh, th [Prevention & Control, Rehabilitation, Therapy] 28 26 or 27 29 12 and 28	1 exp Oropharyngeal Neoplasms/            2 "Head and Neck Neoplasms"/            3 exp Otorhinolaryngologic Neoplasms/            4 exp Neoplasms/            5 (cancer* or carcinoma* or neoplas* or tumor* or tumour* or malignan* or SCC).tw.            6 4 or 5            7 exp Oropharynx/            8 (oropharyn* or mesopharyn* or tonsil* or (head adj3 neck) or "tongue base").tw.            9 7 or 8            10 6 and 9            11 (HNSCC or SCCHN or OP‐SCC or OPSCC).tw.            12 1 or 2 or 3 or 10 or 11            13 exp swallowing/            14 dysphagia/            15 (swallow* or deglutit* or dysphag*).tw.            16 13 or 14 or 15            17 exp Exercise Therapy/            18 exp Isometric Contraction/         19 exp Behavior Therapy/            20 ((swallow* or deglutit* or dysphag* or neuromuscular or mendelsohn or masako or "neuro muscular") adj3 (exercis* or maneuver* or manoeuvre* or manoeuver* or technique* or treatment* or strateg* or rehab* or therap*)).tw.          21 (isometric or IOPI or "iowa oral pressure instrument*" or pharyngocise or OPSE or "oropharyngeal swallowing efficiency").tw. 22 (nmt or "lingual exercis*" or "effortful swallow*" or "supraglottic swallow" or "super glottic swallow*" or "supra glottic swallow*").tw.            23 ((tongue or BOT) adj3 ("range of motion" or ROM or resistance or strength* or holding)).tw.            24 ((voluntary adj3 (control or maneuver* or manoeuvre* or manoeuver*)) or "bearing down" or "progressive resistance" or "behav* management" or (exercis* adj3 (therap* or regime)) or "therapeutic techniq*" or "behav* therap*" or "larygeal elevat*").tw.            25 17 or 18 or 19 or 20 or 21 or 22 or 23 or 24            26 16 and 25            27 exp dysphagia/pc, rh, th [Prevention, Rehabilitation, Therapy]            28 26 or 27            29 12 and 28
CINAHL (EBSCO)	Web of Science (Web of Knowledge)	Trial registries
S29 S11 AND S28 S28 S25 OR S26 OR S27 S27 (MH "Swallowing Therapy") S26 (MH "Deglutition Disorders/PC/RH/TH") S25 S15 AND S24 S24 S16 OR S17 OR S18 OR S19 OR S20 OR S21 OR S22 OR S23 S23 TX (voluntary n3 (control or maneuver* or manoeuvre* or manoeuver*)) or "bearing down" or "progressive resistance" or "behav* management" or (exercis* n3 (therap* or regime)) or "therapeutic techniq*" or "behav* therap*" or "larygeal elevat*" S22 TX (tongue or BOT) n3 ("range of motion" or ROM or resistance or strength* or holding) S21 TX nmt or "lingual exercis*" or "effortful swallow*" or "supraglottic swallow" or "super glottic swallow*" or "supra glottic swallow*" S20 TX isometric or IOPI or "iowa oral pressure instrument*" or pharyngocise or OPSE or "oropharyngeal swallowing efficiency" S19 TX (swallow* or deglutit* or dysphag* or neuromuscular or mendelsohn or masako or "neuro muscular") n3 (exercis* or maneuver* or manoeuvre* or manoeuver* or technique* or treatment* or strateg* or rehab* or therap*) S18 (MH "Behavior Therapy+") S17 (MH "Isometric Contraction") S16 (MH "Therapeutic Exercise+") S15 S12 OR S13 OR S14 S14 TX swallow* or deglutit* or dysphag* S13 (MH "Deglutition Disorders") S12 (MH "Deglutition") S11 S1 OR S2 OR S9 OR S10 S10 TX HNSCC or SCCHN or OP‐SCC or OPSCC S9 S5 AND S8 S8 S6 OR S7 S7 TX oropharyn* or mesopharyn* or tonsil* or (head n3 neck) or "tongue base" S6 (MH "Oropharynx+") S5 S3 OR S4 S4 TX cancer* or carcinoma* or neoplas* or tumor* or tumour* or malignan* or SCC S3 (MH "Neoplasms+") S2 (MH "Otorhinolaryngologic Neoplasms+") S1 (MH "Head and Neck Neoplasms+")	#1 TOPIC: (cancer* or carcinoma* or neoplas* or tumor* or tumour* or malignan* or SCC) #2 TOPIC: (oropharyn* or mesopharyn* or tonsil* or (head near/3 neck) or "tongue base") #3 #2 AND #1 #4 TOPIC: (HNSCC or SCCHN or OP‐SCC or OPSCC) #5 #4 OR #3 #6 TITLE: (swallow* or deglutit* or dysphag*) #7 TITLE: ((neuromuscular or mendelsohn or masako or "neuro muscular") and (exercis* or maneuver* or manoeuvre* or manoeuver* or technique* or treatment* or strateg* or rehab* or therap*)) #8 TITLE: (isometric or IOPI or "iowa oral pressure instrument*" or pharyngocise or OPSE or "oropharyngeal swallowing efficiency") #9 TITLE: (nmt or "lingual exercis*" or "effortful swallow*" or "supraglottic swallow" or "super glottic swallow*" or "supra glottic swallow*") #10 TITLE: ((tongue or BOT) and ("range of motion" or ROM or resistance or strength* or holding)) #11 TITLE: ((voluntary and (control or maneuver* or manoeuvre* or manoeuver*)) or "bearing down" or "progressive resistance" or "behav* management" or (exercis* and (therap* or regime)) or "therapeutic techniq*" or "behav* therap*" or "larygeal elevat*") #12 #11 OR #10 OR #9 OR #8 OR #7 OR #6 #13 #12 AND #5	ICTRP Title: swallow* OR deglutit* OR dysphag* ClinicaTrials.gov (swallow* OR deglutit* OR dysphag*) AND (HNSCC OR SCCHN OR OP‐SCC OR OPSCC OR oropharyn* OR mesopharyn* OR tonsil* OR (head AND neck) OR "tongue base")