Medical patients in Texas and throughout the United States have the right to reasonably assume that the care they receive will be appropriate to their conditions according to accepted protocol and safety standards. A man in another state claimed that not only was the care he received substandard, it was grounds for a medical malpractice lawsuit. He had become permanently disabled after suffering a stroke.
Apparently, there had been other patients who claimed to have been injured by procedures performed by the same doctor who had attended the man filing the claim. At trial, the defense brought a colleague of the doctor to the stand to testify in the case. During his testimony, the co-worker, also a physician at the time, stated that he knew of no incidents where patients claimed to have suffered injury after being treated by the doctor named as a defendant in the case.
The doctor who testified later came forward and confessed that he had lied to protect his colleague. He has since retired from his position as a medical doctor. Since retiring, he has become a patient advocate and assists an attorney who represents injured patients in malpractice lawsuits.
It is common for medical malpractice attorneys in Texas enlist outside testimony when working to convince a court that a person's injuries were caused by substandard medical care. Just as the former physician in this case testified (falsely) that his colleague had never been accused of injuring a patient, a med mal attorney can also enlist third party testimony to substantiate the severity and cause of an injury. In preparation for a trial, such options can be explored and a determination made as to how best to address a particular situation.
Source: npr.org, "Doctor Confesses: I Lied To Protect Colleague In Malpractice Suit", Marshall Allen, Sept. 23, 2016