TY - JOUR T1 - Exfoliative cytology in screening for cervical cancer--a critique JF - Canadian Medical Association Journal JO - CMAJ SP - 833 LP - 833 VL - 105 IS - 8 AU - J. W. Mitchell Y1 - 1971/10/23 UR - http://www.cmaj.ca/content/105/8/833.abstract ER -