Table 1.

Brief summary on pool size used in the literature

References	Pool sample
Pikovski and Bentele [13]	3, 4 and 5
Yelin et al. [15]	32 and 64
Deckert et al. [16]	3−25, can be up to 27
Adikari et al. [20]	32
Elsevier [27]	10
Majid et al. [28]	Up to 64
Mishra et al. [29]	30