instruction: what is the maximum total hospital cost involving a procedure called a transplant surgery consultation in 2104?
response: SELECT MAX(t1.c1) FROM (SELECT SUM(cost.cost) AS c1 FROM cost WHERE cost.patienthealthsystemstayid IN (SELECT patient.patienthealthsystemstayid FROM patient WHERE patient.patientunitstayid IN (SELECT treatment.patientunitstayid FROM treatment WHERE treatment.treatmentname = 'transplant surgery consultation')) AND STRFTIME('%y', cost.chargetime) = '2104' GROUP BY cost.patienthealthsystemstayid) AS t1