A Systematic Review of the Relationship between Blood Loss and Clinical Signs Pacagnella, Rodolfo Carvalho ; Souza, João Paulo ; Durocher, Jill ; Perel, Pablo ; Blum, Jennifer ; Winikoff, Beverly ; Gülmezoglu, Ahmet Metin Abstract Publication: PLoS ONE Pub Date: March 2013 DOI: 10.1371/journal.pone.0057594 Bibcode: 2013PLoSO...857594P