Biological sample bank

For the use of the data in scientific research, a permanent storage, a sample bank,  including all samples was compiled. The bank composes the miniature chest X-ray images (N = 51 500), the resting ECG strips (N = 10 900) and the frozen serum/plasma bank. In the serum/plasma sample bank, the samples are stored at -20oC. A bookkeeping system is connected to the bank, and on its basis the use of the samples can be followed. Originally, the bank included a 10 ml serum and plasma tube for each participant. About 20−25 % of the samples have been thawed, divided into smaller tubes, and refrozen. Currently, the bank includes about 100 000 tubes from 39 900 participants.