"ECG Reading Perfect Manual: Thorough Training with Theory and Waveform Patterns" Shigeyuki Watanabe / Iwao Yamaguchi Price: ¥5800 While there is some wear and tear, it's in good condition with no writing, as far as I could check. I believe it's usable, but since I'm an amateur, there might be some overlooked details. Please purchase only if you understand and accept this. #ShigeyukiWatanabe #Shigeyuki_Watanabe #IwaoYamaguchi #Iwao_Yamaguchi #Book #Nature/MedicalScience/Health