Visual analog scale has comparable validity for perennial allergic, nonallergic rhinitis

The visual analog scale (VAS) demonstrates comparable validity for perennial allergic rhinitis (PAR) and nonallergic rhinitis ...
BMJ

Effectiveness of treatments for acute and subacute mechanical non-specific low back pain: a systematic review with network meta-analysis

Correspondence to Dr Silvia Bargeri, IRCCS Istituto Ortopedico Galeazzi, Unit of Clinical Epidemiology, Milan, Italy Milano, Lombardia, IT, IRCCS Istituto Ortopedico Galeazzi, Milano 20161, Italy; ...