%0 Journal Article %T Correction to: A comprehensive comparison of sex-inducing activity in asexual worms of the planarian Dugesia ryukyuensis: the crucial sex-inducing substance appears to be present in yolk glands in Tricladida %A Haruka Nakagawa %A Kazuya Kobayashi %A Kiyono Sekii %A Makoto Kitamura %A Marina Abukawa %A Midori Matsumoto %A Soichiro Miyashita %A Takanobu Maezawa %J Archive of "Zoological Letters". %D 2018 %R 10.1186/s40851-018-0106-y %X Following publication of the original article [1] the author advised that unfortunately in the ¡®Discussion¡¯ section the letters ¡®L¡¯ and ¡®D¡¯ in some ¡®enantiomer¡¯ expressions were not written in the format of ¡®small capitals¡¯. Rather, they were written as lower-case letters %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6119332/