Skin-Booster Injection on the Left and Right Sides: Which Side Is More Painful?

Kyu-Ho Yi1,2, Hyun-Jin Park3, Jovian Wan4

  • 1Division in Anatomy and Developmental Biology, Department of Oral Biology, Human Identification Research Institute, BK21 FOUR Project, Yonsei University College of Dentistry, Seodaemun-gu, Seoul, Republic of Korea.

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