What books should you read for medical equipment sales, on the aspect of sales skills

Medical engineering room after the 1970s before entering the hospital, our country is a little later. Medical equipment has now become an indispensable tool for prevention, diagnosis, treatment and improvement of the working environment to enhance the health care workers. Involving medical acoustic, optical, mechanical and other disciplines. The essence of medical equipment sales work is to combine advanced medical equipment with clinical needs, recommended sales to the clinical. It is the bridge between the clinic and the manufacturer. Therefore, at least two aspects of knowledge. 1, to know the medical knowledge, engineering knowledge; 2, to understand the management, economic (to stand in the position of the director of the department to consider the problem) with the ability to observe and analyze the expression. Sales skills enhancement I understand the essence of the comprehensive quality of their own enhancement, is multi-angle, multi-faceted.