That was true using various statistical tests and controlling for any number of variables, from length of patient stay to the number of years the physician had been practicing. (fortune.com)
Something can come from nothing; this has been shown to be true using quantum mechanics. (religion.blogs.cnn.com)
And they are probably only of true use if you do a simple «reference to self» to determine any anomaly information. (judithcurry.com)