TY - GEN AU - KOCH,O TI - [Galli-Mainini pregnancy test with native pond-frog (Rana esculenta)] SN - 0036-7672 PY - 2003///0501 KW - Animals KW - Anura KW - Biological Assay KW - Female KW - Ponds KW - Pregnancy Tests KW - Rana esculenta KW - Ranidae N1 - Publication Type: Journal Article ER -