#23	#22 AND #21 DocType=All document types; Language=All languages;
#22	#20 AND #14 DocType=All document types; Language=All languages;
#21	TS=(random* or blind* or allocat* or assign* or trial* or placebo* or crossover* or cross‐over* or group*) DocType=All document types; Language=All languages;
#20	#19 OR #18 OR #17 OR #16 OR #15 DocType=All document types; Language=All languages;
#19	TS=(cardioversion*) DocType=All document types; Language=All languages;
#18	TS=(electrover*) DocType=All document types; Language=All languages;
#17	TS=(electric near/6 (countershock or defibrillat*)) DocType=All document types; Language=All languages;
#16	TS=(cardioverter*) DocType=All document types; Language=All languages;
#15	TS=(defibrillator* and implant*) DocType=All document types; Language=All languages;
#14	#13 OR #12 OR #11 OR #10 OR #9 OR #8 OR #7 OR #6 OR #5 OR #4 OR #3 OR #2 OR #1 DocType=All document types; Language=All languages;
#13	TS=("Ankyrin‐B Syndrome*" or "Ankyrin B Syndrome*") DocType=All document types; Language=All languages;
#12	TS=("catecholaminergic polymorphic ventricular tachycardia" or CPVT) DocType=All document types; Language=All languages;
#11	TS=("cardiac conduction" and (disease or disorder)) DocType=All document types; Language=All languages;
#10	TS=("idiopathic ventricular fibrillation") DocType=All document types; Language=All languages;
#9	TS=(brugada or "sudden unexplained nocturnal death syndrome*" or sunds or "right bundle branch block") DocType=All document types; Language=All languages;
#8	TS=("short qt" or "short‐qt" or sqts) DocType=All document types; Language=All languages;
#7	TS=(("romano ward" or "ward romano") near/6 syndrome*) DocType=All document types; Language=All languages;
#6	TS=(("Jervell‐Lange Nielsen" or "Jervell Lange Nielsen" or "surdo cardiac" or cardioauditory) near/6 syndrome*) DocType=All document types; Language=All languages;
#5	TS=(andersen near/6 (syndrome* or tawil or cardiodysrythmic or paralysis)) DocType=All document types; Language=All languages;
#4	TS=(timothy near/6 syndrome*) DocType=All document types; Language=All languages;
#3	TS=("long qt" or "long q‐t" or lqts) DocType=All document types; Language=All languages;
#2	TS=channelopath* DocType=All document types; Language=All languages;
#1	TS=((cardiac or ion or sodium or calcium or potassium or chloride) near/3 channel*) DocType=All document types; Language=All languages;