The Association of ABO Blood Groups and Serum Ferritin Levels with Telogen Effluvium in Women January 2018 in “ Annals of medical research ” Zeynep Gizem Kaya İslamoğlu, Nihal Sarı We don't know much about this study yet. We're maintaining the world's largest resposity of hair loss research. You can help out the community by sending a PDF of this study here . Not sure how to get a study's PDF? You can email the authors of the study. View this study on ejmanager.com →