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Update on micromanipulation techniques for assisted conception.

This article reviews the progress in the field of micromanipulation in the past year. The major event has been the wide application of intracytoplasmic sperm injection. Other advances include haploid spermatid injection and the development of successful mouse models for intracytoplasmic sperm injection. There is now increasing awareness of the genetic basis of male infertility and its possible impact on how we offer treatment.