Subjects: INSURANCE statistics; HEALTH insurance statistics; ECONOMICSAUSTRALIA; CANADA; EUROPE
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Subjects: REFRACTIVE errors; EYE diseases; MYOPIAUNITED States; AUSTRALIA; WESTERN Europe
Subjects: AIR microbiology; NEISSERIA meningitidis; AIRPLANESAUSTRALIA; UNITED States
Subjects: NOROVIRUSES; GASTROENTERITIS; FOODBORNE diseasesUNITED States; AUSTRALIA