Assertion: elisa | /r/HasProperty | based on described methods
Facets:
value: with respect
type: MANNER
value: previously
type: TEMPORAL
Source sentences:
text: The ELISA was based on previously described methods ( Wattanaphansak et al . 2008 ) with respect to starting concentrations of reagents and a checkerboard titration scheme, as described elsewhere ( Kroll et al . 2005 ; Wattanaphansak et al . 2008 ).