Ashton Pr

Cytopathologic alterations associated with intrauterine contraceptive de vices. (Abstract only)

Johnston Ww, Ashton Pr, 1975 .

The cytopathology of metastatic breast cancer.

Johnston Ww, Ho As, Ashton Pr, 1975 .

Diagnostic cytology seminar.

M. Sullivan, Hajdu Si, Lang Wr, 1982, Acta cytologica.

Retrospective evaluation of gynecologic cytodiagnosis. II. Interlaboratory reproducibility as shown in rescreening large consecutive samples of reported cases.

W. Johnston, J. Watts, R. J. Wood, 1987, Acta cytologica.