TY  - RPRT
TI  - A clinical test for prenancy.
AU  - E A Graber
AU  - H R Barber
AU  - J J O'Rourke
PY  - 1970
DO  - 10.1016/0002-9378(70)90349-2
UR  - https://pubmed.ncbi.nlm.nih.gov/4320999/
ID  - 4320999
ER  -