From the article, the guy who ran the study apparently still has reservations on this point: "And he can even be disparaging of his own work, wondering, for ins

From the article, the guy who ran the study apparently still has reservations on this point: "And he can even be disparaging of his own work, wondering, for instance, whether the study in which placebos were openly given to irritable bowel syndrome patients succeeded only because it convinced the subjects that the sugar was really a drug."