@misc{indiciae649f1681a37d, title = {Course for drug representatives.}, author = {R Massengill and A Verghese and T Robert}, year = {1983}, doi = {10.1097/00001888-198301000-00021}, url = {https://pubmed.ncbi.nlm.nih.gov/6848768/}, note = {Source identifier: 6848768} }