Optimisation of cord blood donations in the Bristol cord blood bank
| Number of donations | 749 |
| Mean volume collected (SD) | 98 ml (32) |
| Mean total nucleated blood cell count (SD) | 10.2 × 108 (4.6) |
| Mean total CD34+ count (SD) | 4.3 × 106 (3.8) |
| Donations discarded because of small volume (<60 ml) | 56 (7.5%) |