TY  - RPRT
TI  - Cervical cytology: a randomized comparison of four sampling methods.
AU  - M L McCord
AU  - T G Stovall
AU  - J L Meric
AU  - R L Summitt
AU  - S A Coleman
PY  - 1992
DO  - 10.1016/0002-9378(92)91568-u
UR  - https://pubmed.ncbi.nlm.nih.gov/1615986/
ID  - 1615986
ER  -