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Registering a trademark is time-consuming and expensive , and all it accomplishes is to strengthen the claim that you already have to the brand name that you use . Testimonials are one of the least expensive , most productive tools to add into your marketing arsenal . The task would be extremely expensive , with a high chance of failure and loss of human life " PHYS3210 is the basic course and is suitable for physics majors as well as for students in other disciplines . " Pressure is mounting for reform of the nation 's increasingly expensive , inefficient health-care system .