<Tr> <Td> 3D model (JSmol) </Td> <Td> <Ul> <Li> Interactive image </Li> </Ul> </Td> </Tr> <Ul> <Li> Interactive image </Li> </Ul> <Tr> <Td> ChEBI </Td> <Td> <Ul> <Li> CHEBI: 17347 </Li> </Ul> </Td> </Tr> <Ul> <Li> CHEBI: 17347 </Li> </Ul>

During old age in normal males testosterone production decreases and sperm production