31. Alongside these are hundreds of even more tightly focused sites serving single industries or single product categories. 32. Biogen needs Amevive to relieve its dependence on a single product , the multiple sclerosis drug Avonex. 33. But elsewhere on the floor are some representatives who have a single product that is personally meaningful. 34. In certain categories, Welch said, a combined license could be granted for a single product . 35. It is often transfused as a four to six unit pool instead of as a single product . 36. There's no coverage about the company and it has yet to release a single product . 37. For medical device companies with a single product , " it is increasingly challenging to remain independent. 38. Many hospitals, though, remain unconvinced that the company's single product is cost-effective. 39. Development of a single product can take more than 10 years and cost hundreds of millions of dollars. 40. Single product companies, like credit card companies, will find it very difficult to stay the course.