instruction: what difference was in the weight of patient 027-106613 measured at 2103-11-19 21:44:14 compared to the value measured at 2103-07-18 11:15:00?
response: SELECT (SELECT patient.admissionweight FROM patient WHERE patient.patienthealthsystemstayid IN (SELECT patient.patienthealthsystemstayid FROM patient WHERE patient.uniquepid = '027-106613') AND NOT patient.admissionweight IS NULL AND patient.unitadmittime = '2103-11-19 21:44:14') - (SELECT patient.admissionweight FROM patient WHERE patient.patienthealthsystemstayid IN (SELECT patient.patienthealthsystemstayid FROM patient WHERE patient.uniquepid = '027-106613') AND NOT patient.admissionweight IS NULL AND patient.unitadmittime = '2103-07-18 11:15:00')