Studies of the mode of outgrowth of the amphibian pronephric duct.
D000663:Amphibians; D000818:Animals; D001001:Anura; D002025:Bufonidae; D014562:Caudata; D014566:Urogenital System / Q000196:embryology*
FROGS AND TOADS; SALAMANDERS; UROGENITAL SYSTEM/embryology