Four eggs of doctor came to our hospital today. First grade of Yamanashi medical university are scheduled to practice how to help the patients with coworkers like nurse , assistant nurse, technician or physical therapist, etc. once a year. They learn how to change the diaper of the patients or how to wipe their body or give them a bath . They are usually tired because they are not used to do such work in their school. I told them as a helper of this exercise that this experience is very important to become an excellent doctor.