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. 2021 Feb 3;27(6):3283–3293. doi: 10.1007/s00500-021-05592-w

Table 2.

BFO and OTW for primary risk factors

BFO IF PSF PF
Best factor: PF 9 4 1
OTW Worst Factor: IF
IF 1
PSF 3
PF 9