Kazan medical journalKazan medical journal0368-48142587-9359Eco-Vector5010310.17816/kazmj50103MiscellaneousDetermination of early pregnancyDanilovI.info@eco-vector.com130219353122792791311202013112020Copyright © 2020, Danilov I.2020<p>The author, recognizing the Zondek-Aschheim'a reaction extremely valuable for determining early pregnancy, considers its length of time to receive a response (100 hours) to be a great disadvantage, and therefore it is not very suitable in cases where it is required to quickly achieve an accurate diagnosis (ectopic pregnancy).</p>Kazan Medical archiveКазанский медицинский архив