 for some of these other cancers where the risk factors are less clear we have a very hard time understanding what their causes may be uh and uh so we're we're really uh early in our understanding of of of these uh these causative issues yeah this is such a mystery right because first of all there's the challenge in understand in teasing apart causation when it could be multimodal right and then as you're saying a lot of it is just nearly impossible to measure i mean quite frankly we're swimming in a sea of chemicals all the time