TY  - RPRT
TI  - Improved Friedman pregnancy test.
AU  - J C NORRIS
AU  - J SPINK
PY  - 1953
DO  - 10.1097/00007611-195309000-00021
UR  - https://pubmed.ncbi.nlm.nih.gov/13089900/
ID  - 13089900
ER  -