| 1 |
Humming Is as Effective as Valsalvaæs Maneuver and Trendelenburgæs Position for Ultrasonographic Visualization of the Jugular Venous System and Common Femoral Veins |
|
| | Lewin, M.R., Stein, J., Wang, R., Lee, M.M., Kernberg, M., Boukhman, M., Hahn, I.-H., Lewiss, R.E. | | | Annals of Emergency Medicine. 2007; 50(1): 73-77 | | | [Pubmed] [Google Scholar] | | | 2 |
Valsalva: Much more than a simple maneuver. Antonio Maria Valsalva (1666-1723) | [Vasalva mucho más que una maniobra. Antonio María Valsalva (1666-1723)] |
|
| | García P, D., García B, C. | | | Revista Medica de Chile. 2006; 134(8): 1065-1068 | | | [Pubmed] [Google Scholar] | |
|
