[Problems with heterogenous matter in the USSR].
D003634:DDT / Q000506:poisoning*; D005506:Food Contamination; D005525:Food-Processing Industry; D006801:Humans; D010575:Pesticides / Q000506:poisoning*; D014586:USSR
D010575:Pesticides; D003634:DDT
Problematika cudzorodých látok v SSSR.