파일:Four week embryo brain.svgOther versions [edit] Arabic multiple languages (bg, ce, en, es, fr, gl, hu, ja, la, pl, pt, ru) Chechen Russian English Spanish Galician Japanese Japanese
파일:Four week embryo brain-ru.svgFile:4 week embryo brain-ru.png Author Kurzon, Юкатан Other versions [edit] Arabic multiple languages (bg, ce, en, es, fr, gl, hu, ja, la, pl, pt, ru) Chechen