The hamster test in a series of 120 infertile patients

The value of a test based on penetration of human sperm into zona-free hamster ova is evaluated by the authors. Rudak's technique was used in 120 infertile patients. The Authors affirm that the hamster test is at present the only practical functional test for the evaluation of the fertilizing capacity of human spermatozoa and that it will probably be more widespread in the future.