Morphometry and Frequency of the Pyramidalis Muscle in Adult Humans: A Pyramidalis Muscle's Anatomical Analysis Flávio Carneiro Hojaij; Rudolph Octaviano Kogima; Raquel Ajub Moyses; Flávia Emi Akamatsu; Alfredo Luiz Jacomo;

Surgical Practice in the Current COVID-19 Pandemic: A Rapid Systematic Review Flávio Carneiro Hojaij; Lucas Albuquerque Chinelatto; Gustavo Henrique Pereira Boog; Júlia Adriana Kasmirski; João Vitor Ziroldo Lopes; Fernando Mauad Sacramento;

Intraoperative changes of surgical approach and a second surgery after percutaneous endoscopic surgery for lumbar spinal stenosis LianSong Lu; ZhenShan Yuan; HaoJie Li; ShaoHua Sun;