Grade Summary Table.

We used the numbers 0, -1, -2 to score every method, with 0 being adequate, -1, serious concern, -2 very serious concern. It is worth noting that publication bias is not part of this table, as we did not have any reason to suspect it has occurred with any of the methods. We defined species differentiation ability of each method as N.S = Nonspecific, H.S = Heterospecific, N.H.S = Narrowly Heterospecific, M.S = Monospecific. And relevant detection limits as Hig.S, High sensitivity, Mar.S = Marginal sensitivity, Ina.S = Inadequate sensitivity.