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INTRODUCTION The purpose of the present study was to review existing population surveys on the prevalence of infertility and proportion of couples seeking medical help for fertility problems. METHODS Population surveys, reporting the prevalence of infertility and proportion of couples seeking help in more and less developed countries, were reviewed. RESULTS(More)
Predicting stock data with traditional time series analysis has proven to be difficult. An artificial neural network may be more suitable for the task. Primarily because no assumption about a suitable mathematical model has to be made prior to forecasting. Furthermore, a neural network has the ability to extract useful information from large sets of data,(More)
STUDY QUESTIONS What are the risks of adverse outcomes in singletons born after frozen-thawed embryo transfer (FET)? SUMMARY ANSWER Singletons born after FET have a better perinatal outcome compared with singletons born after fresh IVF and ICSI as regards low birthweight (LBW) and preterm birth (PTB), but a worse perinatal outcome compared with singletons(More)
BACKGROUND Clinical guidelines are intended to improve healthcare. However, even if guidelines are excellent, their implementation is not assured. In subfertility care, the European Society of Human Reproduction and Embryology (ESHRE) guidelines have been inventoried, and their methodological quality has been assessed. To improve the impact of the ESHRE(More)
The European Classification of Infertility Taskforce (ECIT) has been formed by ESHRE to develop a set of infertility-related codes (descriptions, interventions and outcomes) appropriate for computerization (http://www.ecit.info). In this article, ECIT reflects on previous suggestions in this Debate series, agreeing with the weaknesses of the current(More)
During the 20 years since the first child was born in Sweden after in vitro fertilisation, clinical policy has changed. During the early 1990s, the clinics performing in vitro fertilisation and the National Board of Health and Welfare agreed to reduce the number of embryos transferred to the uterus during in vitro fer-tilisation from three to two. Here, we(More)
This thesis investigates logical formalizations of Castelfranchi and Falcone's (C&F) theory of trust [9, 10, 11, 12]. The C&F theory of trust defines trust as an essentially mental notion, making the theory particularly well suited for formalizations in multi-modal logics of beliefs, goals, intentions, actions, and time. Three different multi-modal logical(More)
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