AU - Pickering JW TI - SUrvivor bias in early- vs late-start hemodialysis studies PT - JOUR DP - 2011 TA - Archives of Internal Medicine pages = {477-478}, VI - 171 IP - 5 AID - 10.1001/archinternmed.2011.55 [doi] 4100 - http://dx.doi.org/10.1001/archinternmed.2011.55 SO - Archives of Internal Medicine March 14, 2011 171(5):477