・「ヒトについての不謹慎で真面目な科学」~Why Is the P____s Shaped Like That? https://www.amazon.co.jp/gp/product/4759819266/ref=as_li_tl?ie=UTF8&tag=ynagata3150-22&camp=247&creative=1211&linkCode=as2&creativeASIN=4759819266&linkId=790c496015dd04f7903d2132e7266b94
http://www.nicovideo.jp/watch/sm36191193