Frontal sinus approach: the 'vertical bar' concept.
Stamm
A
A
Nogueira
J F
JF
Americo
R R
RR
Solferini Silva
M L
ML
D002983:Clinical Competence / Q000592:standards; D004724:Endoscopy / Q000379:methods*; D005626:Frontal Sinus / Q000033:anatomy & histology / Q000601:surgery*; D006801:Humans; D007431:Intraoperative Complications / Q000517:prevention & control