CENTRAL	PubMed	EMBASE (Ovid)	CINAHL (EBSCO)
#1 MeSH descriptor Ear Cartilage explode all trees #2 MeSH descriptor Ear Deformities, Acquired explode all trees #3 wrestler* OR cauliflower #4 (ear* OR auric* OR pinna*) NEAR (haematoma* OR hematoma*) #5 (#1 OR #2 OR #3 OR #4)	#5  #1 OR #2 OR #3 OR #5 #4  "Ear Cartilage"[Mesh] #3  (ear* OR pinna* OR auric*) AND (hematoma* OR haematoma*) #2  (cauliflower OR wrestler*) AND ear* #1  "Ear Deformities, Acquired"[Mesh]	1 exp EXTERNAL EAR/ 2 ear injury/ 3 1 or 2 4 (hematoma* or haematoma*).tw. 5 4 and 3 6 exp EXTERNAL EAR MALFORMATION/ 7 ((auric* or auris or ear* or pinna*) and (hematoma* or haematoma* or cauliflower or wrestler* or boxer* or rugby or football*)).tw. 8 6 or 7 or 5	3 s1 OR s2 2 TX ((ear* OR pinna* OR auric*) AND (hematoma* OR haematoma*)) 1 TX ((cauliflower OR wrestler*) AND ear*)
Cochrane Ear Nose and Throat Disorders Group Trials Register (ProCite database)	ISI Web of Science/BIOSIS Previews (Web of Knowledge)	CAB Abstracts (Ovid)	ICTRP
haematoma OR hematoma OR bruis* OR wrestler* OR cauliflower*	#3 #2 OR #1 #2 TS=((ear* OR pinna* OR auric*) AND (hematoma* OR haematoma*)) #1 TS=((cauliflower OR wrestler*) AND ear*)	1 ((auric* or auris or ear* or pinna*) and (hematoma* or haematoma* or cauliflower or wrestler* or boxer* or rugby or football*))	auric* AND haematoma* OR auric* AND hematoma* OR pinna* AND haematoma* OR pinna* AND hematoma* OR ear AND hematoma* OR ear AND haematoma* OR cauliflower AND ear* OR wrestler* AND ear*