TY - JOUR TI - Botulinum Toxin Injection in Long-Standing Facial Paralysis Patients: Improvement of Facial Symmetry Observed up to 6 Months PY - 2009 AU - Salles, Alessandra Grassi AU - Toledo, Paula Nunes AU - Ferreira, Marcus Castro T2 - Aesthetic plastic surgery SN - 0364-216X DO - 10.1007/s00266-009-9337-9 UR - http://link.springer.com/article/10.1007/s00266-009-9337-9 PP - New York VL - 33 IS - 4 SP - 582-590 ER -