This is the official problem book for the electrocardiogram (ECG) certification exam, containing 111 questions corresponding to levels 2 and 3. [Title] ECG Certification Official Problem Book & Guide [Edition] Revised 3rd Edition [Target Levels] Level 2 / Level 3 [Number of Questions] 111 [Price] ¥2,800 + tax ☆ There are no markings inside. ☆ Although it is in good condition with little use, it has been stored at home after purchase, so please purchase only if you understand this. ☆ Immediate purchase is OK ⭕️. Thank you for viewing. Thank you for your consideration.