1. Unstable DNA amplifications in methotrexate-resistant Leishmania consists of extrachromosomal circles which relocalize during stabilization;Beverley;Cell,1984
2. Primary structure of the gene encoding the bifunctional dihydrofolate reductase-thymidylate synthase of Leishmania major;Beverley,1986
3. Gene amplification in Leishmania;Beverley,1988
4. Dihydrofolate reductase;Blakely,1984
5. Molecular cloning and sequence analysis of the Plasmodium falciparum dihydrofolate reductase-thymidylate synthase gene;Bzik,1987