@article{doi:10.1001/jama.1949.02910010107023, title = {Isotopic carbon: Techniques in its measurement and chemical manipulation}, journal = {Journal of the American Medical Association}, volume = {141}, number = {1}, pages = {105}, year = {1949}, doi = {10.1001/jama.1949.02910010107023}, URL = { + http://dx.doi.org/10.1001/jama.1949.02910010107023}, eprint = {/data/Journals/JAMA/7110/jama_141_1_023.pdf} }