TY  - GEN
AU  - Maurer,B J
AU  - Lai,E
AU  - Hamkalo,B A
AU  - Hood,L
AU  - Attardi,G
TI  - Novel submicroscopic extrachromosomal elements containing amplified genes in human cells
SN  - 0028-0836
PY  - 1987///0630
KW  - Drug Resistance
KW  - Extrachromosomal Inheritance
KW  - Gene Amplification
KW  - Genes
KW  - Genetic Variation
KW  - HeLa Cells
KW  - enzymology
KW  - Humans
KW  - Methotrexate
KW  - pharmacology
KW  - Tetrahydrofolate Dehydrogenase
KW  - genetics
N1  - Publication Type: Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.; Research Support, U.S. Gov't, P.H.S
UR  - https://doi.org/10.1038/327434a0
ER  -