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Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Hodgson G. W., Baker B. L. Porphyrin abiogenesis from pyrrole and formaldehyde under simulated geochemical conditions. Nature. 1967 Oct 7;216(5110):29–32. doi: 10.1038/216029a0. [DOI] [PubMed] [Google Scholar]
- PULLMAN B., PULLMAN A. Electronic delocalization and biochemical evolution. Nature. 1962 Dec 22;196:1137–1142. doi: 10.1038/1961137a0. [DOI] [PubMed] [Google Scholar]
- SZUTKA A., HAZEL J. F., McNABB W. M. Synthesis of porphine-like substances induced by gamma-irradiation. Radiat Res. 1959 May;10(5):597–603. [PubMed] [Google Scholar]
- SZUTKA A. PORPHINE-LIKE SUBSTANCES: PROBABLE SYNTHESIS DURING CHEMICAL EVOLUTION. Nature. 1964 Jun 20;202:1231–1232. doi: 10.1038/2021231b0. [DOI] [PubMed] [Google Scholar]
- Szutka A. Formation of pyrrolic compounds by ultra-violet irradiation of delta-aminolevulinic acid. Nature. 1966 Oct 22;212(5060):401–402. doi: 10.1038/212401a0. [DOI] [PubMed] [Google Scholar]