Millions of involuntarily sterile couples (suffering from infertility) present an important and acute human and social problem in our society today. Infertility has a serious impact on a couple's personal relations and, consequently, on their mental and physical health and may influence their social and economic status. Thus, involuntary sterility presents a challenge to the medical profession. ZDL, Inc., via the introduction of its product line is seeking to capture a major part of the infertility market, especially the portion directed towards the IUI market and particularly that of the private physician that performs ovulation induction, prediction and insemination in his office and wishes to control and maintain his patient clientele.