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Erdemoglu E, Mungan T (July 2004). „Significance of detecting insulin-like growth factor binding protein-1 in cervicovaginal secretions: comparison with nitrazine test and amniotic fluid volume assessment”. Acta Obstet Gynecol Scand83 (7): 622–6. DOI:10.1111/j.0001-6349.2004.00343.x. PMID15225185.
Sobel JD, Nyirjesy P, Kessary H, Ferris DG (September 2009). „Use of the VS-sense swab in diagnosing vulvovaginitis”. J Womens Health (Larchmt)18 (9): 1467–70. DOI:10.1089/jwh.2008.1305. PMID19743911.