I'm leaving a review after getting my flu shot at Ongakgong Health Clinic. The process from registration to treatment and vaccination was clean and quick, with no long waits. The medical staff and employees were very friendly and helpful, so I didn't feel uncomfortable even though it was my first visit. They explained the precautions before and after the shot in detail, which put me at ease. The injection itself wasn't as painful as I thought. I also appreciated the short wait after the shot to check on my condition. Overall, the calm and organized atmosphere made it a great place to get a flu shot or get a simple checkup. Since it's located near a subway station, I highly recommend it. The staff were very friendly.