1. Newcastle Fertility Centre; Newcastle upon Tyne Hospitals NHS Foundation Trust; Newcastle upon Tyne UK
2. School of Medicine; Newcastle University; Newcastle upon Tyne UK
3. HPT/Axis Inc.; Houston TX USA
4. Endocrine Unit; Royal Victoria Infirmary; Newcastle upon Tyne Hospitals NHS Foundation Trust; Newcastle-upon-Tyne UK
5. Institute for Genetic Medicine; Newcastle University; Newcastle-upon-Tyne UK