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spec: Evaluation reveals that effective coverage and benefit levels are low , costs in the private programme are high , and insured persons are often not fully informed about how the system works . The scars stemming from the historic legacy of division are based on the confrontations between the pro-Japanese and anti-Japanese camps , between the leftists and rightists , and between the dictatorial regimes and resistance forces . Sperm whale density was correlated with the first and the second principal components over spatial scales equal to or greater than 320 nautical miles . Enrollees and insured persons are permitted to change primary care physicians at will , except that a managed care plan , health insurance policy or casualty insurance policy may restrict the enrollee or insured person to changing primary care physicians not more than twice in a 12-month period .