| Title : Development of cholinesterase in the optic lobes of the frog (Rana pipiens) - |
| Author(s) : Boell EJ , Greenfield P , Shen SC |
| Ref : Journal of Experimental Zoology , 129 :415 , 1955 |
| PubMedID: |
| Title : The distribution of cholinesterase in the frog brain - |
| Author(s) : Shen SC , Greenfield P , Boell EJ |
| Ref : Journal of Comparative Neurology , 102 :717 , 1955 |
| PubMedID: |