Primary care physicians' perceptions of barriers and facilitators to management of chronic kidney disease: A mixed methods study. oleh C John Sperati, Sandeep Soman, Varun Agrawal, Yang Liu, Khaled Abdel-Kader, Clarissa J Diamantidis, Michelle M Estrella, Kerri Cavanaugh, Laura Plantinga, Jane Schell, James Simon, Joseph A Vassalotti, Michael J Choi, Bernard G Jaar, Raquel C Greer, National Kidney Foundation Education Committee