The vast majority of pregnancy failure occurs in the early stages of pregnancy (the first few days after ovulation and conception). As many as 50% of all patients with suspected infertility suffer from some form of implantation failure. KOFINAS PERINATAL in conjunction with the KOFINAS FERTILITY INSTITUTE identified this problem several years ago and has since developed protocols for the successful management of such patients. These protocols involve a thorough assessment of the parents for certain conditions linked to implantation failure, after which individual treatment of each patient is pursued more effectively.