1. Clearly express the knowledge, skills and experience that you hope to gain through further study, such as improving the reading ability of ECG, learning the latest ECG technology, and understanding the diagnosis and treatment of common ECG abnormalities.

2. List the specific requirements for refresher courses or training, including attending relevant courses, participating in clinical practice, observing actual cases, and communicating with experts. You can also mention the certificate or qualification you wish to obtain.

3. Briefly introduce your education, work experience and relevant professional knowledge, so as to explain why you are interested in further study of ECG and explain the existing foundation.

4. Describe the expected specific benefits of further study, including improving clinical skills, enhancing understanding of ECG, improving diagnostic accuracy and enhancing professional ability.

If you have a specific study plan, such as choosing a specific learning institution or training course, you can mention it in the article and explain the reason for choosing this plan.