Kazan medical journalKazan medical journal0368-48142587-9359Eco-Vector7770510.17816/kazmj77705MiscellaneousA new sign of pregnancy151219272312129312930908202109082021Copyright © 1927, Board E.1927<p>In order to diagnose early pregnancy, the author injects a woman intravenously with 1 qt of pituizine. In case of pregnancy in 10-20 seconds the bimanual examination easily detects a sharp uterine contraction, which lasts from 1 to 5 min, after which the uterus begins to soften again.</p>Kazan Medical archiveКазанский медицинский архив