Furrer M, Naegeli B, Bertel O (2004). «Hazards of an alternative medicine device in a patient with a pacemaker». N Engl J Med. 350: 1688–90. PMID15084709. doi:10.1056/NEJM200404153501623
In Memoriam WebsiteArquivado em 2018-10-03 no Wayback Machine, domain registered by Clark's publisher, New Century Press: "On the evening of September 3rd 2009, Dr. Hulda Clark’s celebrated life came to an end."
Furrer M, Naegeli B, Bertel O (2004). «Hazards of an alternative medicine device in a patient with a pacemaker». N Engl J Med. 350: 1688–90. PMID15084709. doi:10.1056/NEJM200404153501623
In Memoriam WebsiteArquivado em 2018-10-03 no Wayback Machine, domain registered by Clark's publisher, New Century Press: "On the evening of September 3rd 2009, Dr. Hulda Clark’s celebrated life came to an end."