@article{article955de944,
title   = {Botulinum Toxin Injection in Long-Standing Facial Paralysis Patients: Improvement of Facial Symmetry Observed up to 6 Months},
author = {Salles, Alessandra Grassi and Toledo, Paula Nunes and Ferreira, Marcus Castro},
year = {2009},
doi = {10.1007/s00266-009-9337-9},
journal   = {Aesthetic plastic surgery}
}