1L1 Cosmetic Surgery and Laser Center, Taipei, Taiwan Address correspondence and reprint requests to: Yen-Yu Chao, MD, 3/F No.8-1 Chin-Chen St Taipei 105, Taiwan ROC, or e-mail: [email protected] Drs. Chao and Chiu are physicians in Taiwan. They have disclosed no financial interests in Merz Aesthetics, manufacturers of Radiesse (calcium hydroxylapatite). Dr. Chao is a member of Merz Aesthetics' Medical Education Faculty. David Howell is a self-employed medical writer in San Francisco, California; he was compensated by Merz Aesthetics for his editorial contributions.
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Chao et al. (2011) studied this question.