[Nucleotides and free purine bases in the development of amphibians].
D000663:Amphibians; D000818:Animals; D002845:Chromatography; D009711:Nucleotides; D011687:Purines
D009711:Nucleotides; D011687:Purines; C030985:purine
CHROMATOGRAPHY; NUCLEOTIDES; PURINES
Les nucléotides et les bases puriques libres dans le développement des amphibiens.