Bahadur, G, Homburg, R, Bosmans, J E, Huirne, J A F, Hinstridge, P, Jayaprakasan, K, Racich, P, Alam, R, Karapanos, I, Illahibuccus, A, Al-Habib, A & Jauniaux, E 2020, ' Observational retrospective study of UK national success, risks and costs for 319,105 IVF/ICSI and 30,669 IUI treatment cycles ', BMJ Open, vol. 10, no. 3, e034566, pp. 1-9 . https://doi.org/10.1136/bmjopen-2019-034566 Bahadur, G, Homburg, R, Bosmans, J E, Huirne, J A F, Hinstridge, P, Jayaprakasan, K, Racich, P, Alam, R, Karapanos, I, Illahibuccus, A, Al-Habib, A & Jauniaux, E 2020, ' Observational retrospective study of UK national success, risks and costs for 319,105 IVF/ICSI and 30,669 IUI treatment cycles ', BMJ Open, vol. 10, no. 3, e034566 . https://doi.org/10.1136/bmjopen-2019-034566 BMJ open, 10(3):e034566. BMJ Publishing Group BMJ Open, Vol 10, Iss 3 (2020) BMJ Open BMJ Open, 10(3):e034566, 1-9. BMJ Publishing Group BMJ Open, 10(3):e034566. BMJ Publishing Group