@article{article36c3711d,
title   = {Comparative efficiency of Class II malocclusion treatment with the pendulum appliance or two maxillary premolar extractions and edgewire appliances},
author = {Pinzan-Vercelino, Célia Regina Maio and Janson, Guilherme dos Reis Pereira and Pinzan, Arnaldo and Almeida, Renato Rodrigues de and Freitas, Marcos Roberto de and Freitas, Karina Salvatore de},
year = {2009},
doi = {10.1093/ejo/cjn115},
journal   = {European Journal of Orthodontics}
}