1. Miller G (1999) Are we on the threshold of a new theory of disease? Toxicol Ind Health 15:284–294
2. Buchwald D, Garrity D (1994) Comparison of patients with chronic fatigue syndrome, fibromyalgia, and multiple chemical sensitivities. Arch Intern Med 154:2049–2053
3. Donnay A, Ziem G (1999) Prevalence and overlap of chronic fatigue syndrome and fibromyalgia syndrome among 100 new patients. J Chron Fatigue Syndr 5:71–80
4. Pall ML (2009) Explaining ‘unexplained illnesses’: disease paradigm for chronic fatigue syndrome, multiple chemical sensitivity, fibromyalgia, posttraumatic stress disorder, Gulf War syndrome and others. Harrington (Hayworth) Press, New York
5. Donohue D, Movahed MR (2005) Clinical characteristics, demographics and prognosis of transient left ventricular apical ballooning syndrome. Heart Fail Rev 10:311–316