Fear of a malpractice suit for missing a diagnosis is a major driver behind "defensive medicine, " the researchers note.

WSJ: Adding Up Diagnosis Errors

But if there's a malpractice suit, the data can become courtroom gold.

FORBES: Defensive Medicine

But, according to a malpractice suit, at least one of its doctors felt so pressured to use Medtronic products that he called for an in-house ethics consultation.

FORBES: Unintended Consequences

In April it asked a Massachusetts state judge to preemptively declare that the firm had adequately performed its duties, and to effectively bar Mr. McCourt from bringing a malpractice suit.

WSJ: Dodgers Owner Takes Aim at Law Firm

Last week the FDIC filed suit against Colonial Bank auditor PwC, and internal audit co-source vendor Crowe Horwath, for professional malpractice and breach of contract.

FORBES: A Tale of Two Lawsuits -- PricewaterhouseCoopers and Colonial Bank