%0 Journal Article %A D I Rushton %T Germ cells and genital ridges. %D 1970 %R 10.1136/adc.45.243.708-a %J Archives of Disease in Childhood %P 708-708 %V 45 %N 243 %U https://adc.bmj.com/content/archdischild/45/243/708.1.full.pdf