 Viz originally published the first 194 chapters as "Dragon Ball" and chapters over 195 as "Dragon Ball Z" to mimic the names of the anime series, feeling it would reduce the potential for confusion by its readers.They initially released both series simultaneously, chapter by chapter in a monthly comic book format starting in 1998, before stopping in 2000 to switch to a graphic novel format similar to the Japanese "tankōbon".In 2000, while releasing "Dragon Ball" in the monthly format, Viz began to censor the manga in response to parental complaints about sexual innuendos.<ref></ref><ref name="censorship"></ref> Viz changed their publishing format for the series again in 2003; the first ten collected volumes of both series were re-released under their "Shonen Jump" imprint.