Both types of insemination are carried out with the same frequency. The main difference is the moment when the hCG shot is injected to trigger ovulation. Also, in double IUI, the woman has to visit the clinic two days in a row to repeat the process.
Degree in Biochemistry and Molecular Biology from the University of the Basque Country (UPV/EHU). Master's Degree in Human Assisted Reproduction from the Complutense University of Madrid (UCM). Certificate of University Expert in Genetic Diagnosis Techniques from the University of Valencia (UV).