This conference, dedicated to the etiology and treatment of motility disor ders in spermatozoa and male sterility, attracted some of the finest investiga tors in the field. Standards were immensely high throughout, and discussions were meaningful and detailed. Analyses on disorders in sperm motility de mand a broad-based approach, involving cytologists, geneticists, andrologists, and embryologists, because the topic has many clinical and scientific over tones. Human spermatozoa are at the ...