There is a reconfirmation of doctor's perception clearly. To comply with the products were detailed, such as some doctor prefer Monotherapy and some doctor like fix dose combination. This process will give the information to target customers more impact. And aims to provide information to the physician who can recommend Merck product to other physicians such as deliver Encephabol'information to neuro-med who is going to convince to neuro surgeon later. and finally Neuro surgeon used Concor too.