adds FEV1 variable for the spirometry best curve from the Spirometry QS
adds fVC variable for the spirometry best curve from the Spirometry QS
adds the name of the second best curve variable from the spirometry QS
adds curve time stamp of the second best curve variable from the spirometry QS
adds acceptable start variable from the second curve from the spirometry QS
adds acceptable end variable from the second curve from the spirometry QS
adds FEV1 variable from the second curve from the spirometry QS
adds FVC variable from the second curve from the spirometry QS