| The New York Times series on GPOs |
| March 4, 2002 |
"Medicine's Middlemen; 2 Powerful Groups Hold Sway Over Buying at Many Hospitals" By Walt Bogdanich |
| March 26, 2002 |
"When a Buyer for Hospitals Has a Stake in Drugs It Buys" By Mary Williams Walsh |
| April 23, 2002 |
"Hospital Products Get Seal of Approval at a Price" By Barry Meier |
| April 27, 2002 |
"Hospital Group's Link to Company Is Criticized" By Mary Williams Walsh |
| April 30, 2002 |
"Hospitals Sometimes Lose Money by Using a Supply Buying Group" By Mary Williams Walsh and Barry Meier |
| May 1, 2002 |
"Senate Panel Criticizes Hospital Buying Groups" By Barry Meier and Mary Williams Walsh |
| June 7, 2002 |
"A Mission to Save Money, a Record of Otherwise" By Mary Williams Walsh |
| July 19, 2002 |
"Questioning $1 Million Fee in a Needle Deal" By Barry Meier with Mary Williams Walsh |
| August 1, 2002 |
"Accusation of Conflicts at a Supplier to Hospitals" By Mary Williams Walsh |
| August 6, 2002 |
"Buying Group for Hospitals Changes Ways" By Barry Meier and Mary Williams Walsh |
| August 9, 2002 |
"Buying Group for Hospitals Vows Change" By Barry Meier with Mary Williams Walsh |
| August 15, 2002 |
"3 Medical Supply Companies Receive U.S. Agency Subpoenas" By Mary Williams Walsh |
| September 4, 2002 |
"A Persistent Small Supplier Gets Contract for Hospitals" By Barry Meier |
| October 8, 2002 |
"A Region's Hospital Supplies: Costly Ties" By Barry Meier |
| October 24, 2002 |
"Ethics Standards Overhaul Urged for Hospital Buying Groups " By Barry Meier |
| November 23, 2002 |
"Hospital Network's Switch Is Blow to Novation" By Mary Williams Walsh |
| December 28, 2002 |
"More Hospitals Change the Way They Buy Drugs And Supplies" By Mary Williams Walsh |
| September 15, 2004 |
"Senate Panel Weighs Tighter Rules for Hospital Suppliers " By Mary Williams Walsh |
| August 21, 2004 |
"Wide U.S. Inquiry Into Purchasing for Health Care" By Mary Williams Walsh |
| September 14, 2004 |
"U.S. to Address Possible Abuses in Hospital Supply Industry " By Mary Williams Walsh |