Sorry,but right after I clicked your [link.Here](https://link.Here) were the illustrations: `Stammering is not caused by anxiety or stress. But people may stammer more when stressed or anxious.` `It is often a hereditary condition — about 60% of people who stammer have another family member who stammers. Most adults who stammer, around 75%, are male. When it begins in childhood, this is known as developmental stammering.` So at once I could have picked out two errors in the upper illustration and the sex ratio.But I didn't realize that they had illustrated all of kinds of stutters as the adjuncts afterwards.Actually the relevant statistics to stammering hitherto are all based on a very small sample size(like 20-30 men and 10-20 women,way too smaller compared to the total of PWS) but experts are ignoring the haphazards of the samples and increasing them as the results,and this association can't exempt from [this.So](https://this.So) subconsciously I considered it as another prudish association. But to feast my eyes,they are eradicating some prevalent myths about stammering,like the actual prevalence of stammering(although this investigation was still based on a very small sample size...),about which I was perplexed when it comes to the methods in the past investigators were assuring whether the respondent was a PWS or not..indeed I got them right...They are really assuring by one question"Are you a PWS or not?". Also British Stammering Association is more scholastic than American Stuttering Association and Japanese Stuttering Association cuz linguisitic pathologists included in it are carrying out researches themselves unlike other associations are just recruiting pathologists for treatments or 'plagiarizing' researches from other scholastic departments and institutes,seemingly in fact being not very rigorous about stutter and PWS's feelings.. Also the truth about the last research into ecopipam is that only 5 men accepted this research at last...So the sample haphazard was very obvious.That's why I suggested to divert all attentions into the ongoing clinic trial that is still recruiting volunteers recently...