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8. [Comparison of the methods of cytobrush and Ayre spatula in the concentration of endocervical cells]. Longatto Filho A, Maeda MY, Santos DR, de Andréa Filho A, Cavaliere MJ, Shih LW, Oyafuso MS. Rev Paul Med; 1991 Jun; 109(3):93-6. PubMed ID: 1947611 [Abstract] [Full Text] [Related]
9. Comparing two sampling techniques for endocervical cell recovery on Papanicolaou smears. Helderman G, Graham L, Cannon D, Waters K, Feller D. Nurse Pract; 1990 Nov; 15(11):30-2. PubMed ID: 2255424 [Abstract] [Full Text] [Related]
10. Comparison of spatula and nonspatula methods for cervical sampling. Rammou-Kinia R, Anagnostopoulou I, Gomousa M. Acta Cytol; 1991 Nov; 35(1):69-75. PubMed ID: 1994638 [Abstract] [Full Text] [Related]
11. Safety, efficacy and cost of three cervical cytology sampling devices in a prenatal clinic. Smith-Levitin M, Hernandez E, Anderson L, Heller P. J Reprod Med; 1996 Oct; 41(10):749-53. PubMed ID: 8913977 [Abstract] [Full Text] [Related]