1. Swine ultrasonography numerical modeling for pregnancy diagnosis and prediction of litter size;Kousenidis;Int J Biol Biomed Eng,2021
2. Development and evaluation of a direct enzyme immunoassay for oestrone sulphate in urine as a tool for diagnosis of early pregnancy in swine;Stefanakis;Anim Reprod Sci,2000
3. Field experiences with early pregnancy diagnosis by progesterone-based ELISA in sows;Boma;Onderstepoort J Vet Sci,2008
4. Visualizing the reproductive tract of the female pig using real-time ultrasonography;Knox;J Swine Health Prod,1999
5. Pregnancy diagnosis in swine: a comparison of the accuracies of mechanical and endocrine tests with return to estrus;Almond;J Am Vet Med Assoc,1986