Can repeat IVF/ICSI cycles compensate for the natural decline in fertility with age? an estimate of cumulative live birth rates over multiple IVF/ICSI cycles in Chinese advanced-aged population
Figure 1.Flowchart and data processing of the study population. Notes: *data of the fifth cycle were not included for subgroup analysis because of few cases. PGT, preimplantation genetic testing; ART, assisted reproductive technology.