Analogical reasoning often leads to wrong conclusions. They make their conclusions and assessments based on reliable evidence. Studies of interventions have methodological problems that prevent definitive conclusions about efficacy. There were no conclusions or evidence provided by the investigation. Later morphological studies came to conflicting conclusions. Two lines of reasoning lead to opposite conclusions. Thought experiments invoke particulars that are irrelevant to the generality of their conclusions. Other observers have criticized the thoroughness of the investigation and the validity of its conclusions. Critics challenged both her conclusions and her methodology. Garst and Nelson have debated the merits of their divergent research conclusions. Experts cautioned that data was insufficient to allow conclusions on health impacts. Others have criticised the report for being too broad and too vague in its conclusions. It is much too early to draw unambiguous statistically significant conclusions. Specific types of dialogue can be analyzed and questioned to reveal premises, conclusions, and fallacies. Others have disagreed with Stickel's conclusions.