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Study blows whistle on ref's fitness › News in Science (ABC Science)
Psychologist explains the problem of angry parents and coaches – Harvard Gazette
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Climate change, cold air, making your bed, exercising, and now whistles cause heart attacks, They think
No evidence of referee whistles leading to heart problems in athletes – and not reported by Irish newspaper - Africa Check
Electronic Referee Whistles As Alternative for Sports Officials During COVID-19 | Blog | Ump-Attire.com
9 Health Benefits of Swimming – Cleveland Clinic
Whistle for N.C.A.A. Tournament Is Instrumental to the Game - The New York Times
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What's that sound? It's an electronic whistle from sports officials because of COVID-19 | Pittsburgh Post-Gazette
The official story | Iowa Now - The University of Iowa
Sports Whistles Australia | HART Sport
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No evidence of referee whistles leading to heart problems in athletes – and not reported by Irish newspaper - Africa Check
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Steve Kirsch on Twitter: "I've heard this before. Referee whistles are causing the sudden cardiac arrests, but it's ONLY happening in vaccinated athletes for some reason... hmmm..." / X
Set an Appointment for Athletic and UIL Physicals - Southside Independent School District
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The Origin of the Referee's Whistle - Scouting The Refs
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Football Whistles for Referees | ACME Whistles
