{collapse-item label="Heartbeat spectrum (೭(˵ˉ̴͒ꇴˉ̴͒˵)౨Hey, hey, hey, hey, hey, hey, hey, hey, hey, hey, hey, hey, hey, hey, hey, hey, hey, hey, hey, hey, hey, hey, hey, hey, hey, hey, hey, hey, hey, hey."}
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{/collapse-item}