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2. Esthélis®, hyaluronic acid of Swiss design: first complete study of the physico‐chemical characteristic and clinical trials 24‐months safety follow‐up report;Micheels P;AJCS,2009
3. Bessere verteilung in der haut dank CPM‐verfahren;Rheinmüller J;Aesthetic Tribune,2005
4. CPM® hyaluronate and scars;Micheels P;AJCS,2008
5. A study of the clinical effectiveness of a new polydensified monophasic hyaluronic acid dermal filler;Gregory I;AJCS,2007