Objective To investgate the treatment of asthenospermia and necrospermia infertility with percutaneous vasal sperm aspiration ( PVSA) and intrauterine insemination ( IUI) .
Only after pollination can the next process occur-fertilisation-when the pollen carried from another plant fertilises a female ovule to make new seeds.
He didn't have a donor catalogue because unknown to his patients, all of the sperm he used to inseminate his patients came from one donor, Dr. Jacobson himself.