sclerosis detect systemic arterial diagnosis algorithm predictive negative sensitivity hypertension pulmonary application value early single center high
predictive negative sensitivity positive values specificity value relation ppt powerpoint presentation
predictive negative ppv npv definitions sensitivity specificity
positive predictive value negative test values specificity sensitivity ppt powerpoint presentation tested pvp specimens valid sample only
predictive value positive ppv negative npv equation calculation
predictive positive value test sensitivity negative specificity values affected ppt powerpoint presentation proportion testing