【正确答案】 In most sectors of the economy, it is the seller who attempts to attract a potential buyer with various inducements of price, quality and utility, and the buyer who makes the decision. In medical industry, however, the doctor-patient relationship is the mirror image of the ordinary relationship between the producer and the consumer. Once an individual decides to see a doctor, the doctor usually makes all significant decisions: whether the patient should return next Monday, whether X-rays are needed, whether drugs should be prescribed, etc.