1. Carp HJA, Biochemical Pregnancies. How Should They Be Interpreted? Gynecological and Reproductive Endocrinology & Metabolism [Internet]. [cited 2022 Oct 3]; https://gremjournal.com/journal/01-2020/biochemical-pregnancies-how-should-they-be-interpreted/
2. Annan JJK, Gudi A, Bhide P, Shah A, Homburg R. Biochemical pregnancy during assisted conception: a little bit pregnant. J Clin Med Res. 2013;5:269–74.
3. Kolte AM, Bernardi LA, Christiansen OB, Quenby S, Farquharson RG, Goddijn M, et al. Terminology for pregnancy loss prior to viability: a consensus statement from the ESHRE early pregnancy special interest group. Hum Reprod. 2015;30:495–8.
4. Alves C, Jenkins SM, Rapp A. Early Pregnancy Loss (Spontaneous Abortion). StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2024 [cited 2024 Jun 30]. http://www.ncbi.nlm.nih.gov/books/NBK560521/
5. Chaudhry K, Tafti D, Siccardi MA. Anembryonic Pregnancy. StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2022 [cited 2022 Sep 29]. http://www.ncbi.nlm.nih.gov/books/NBK499938/