@misc{indiciaee7f1797b19c1, title = {The physician depression scale (PDS): a factor analytic study.}, author = {K Rickels and R W Downing and H Spaeth}, year = {1973}, doi = {10.1055/s-0028-1094392}, url = {https://pubmed.ncbi.nlm.nih.gov/4605313/}, note = {Source identifier: 4605313} }