instruction: on the first hospital encounter, what was the monthly maximum value of the wbc, ascites of patient 19175?
response: SELECT MAX(labevents.valuenum) FROM labevents WHERE labevents.hadm_id IN (SELECT admissions.hadm_id FROM admissions WHERE admissions.subject_id = 19175 AND NOT admissions.dischtime IS NULL ORDER BY admissions.admittime LIMIT 1) AND labevents.itemid IN (SELECT d_labitems.itemid FROM d_labitems WHERE d_labitems.label = 'wbc, ascites') GROUP BY STRFTIME('%y-%m', labevents.charttime)