TY - RPRT TI - The physician depression scale (PDS): a factor analytic study. AU - K Rickels AU - R W Downing AU - H Spaeth PY - 1973 DO - 10.1055/s-0028-1094392 UR - https://pubmed.ncbi.nlm.nih.gov/4605313/ ID - 4605313 ER -