<Tr> <Td> ECHA InfoCard </Td> <Td> 100.000. 318 </Td> </Tr> <Tr> <Td> KEGG </Td> <Td> <Ul> <Li> C00410 </Li> </Ul> </Td> </Tr> <Ul> <Li> C00410 </Li> </Ul> <Tr> <Td> PubChem CID </Td> <Td> <Ul> <Li> 5994 </Li> </Ul> </Td> </Tr>

Where does progesterone come from in the body