 look people have no idea they may do 20 studies 19 of them show the drug is harmful i'm making up this anecdote for the sake of example one of them showed some limited benefit for a period of time they don't publish the 19 studies that showed bad they publish a like you say cherry pick study where they got a little bit of data for a short period of time that looks good that's what they publish you don't know how many they didn't publish they don't have to tell you that