Progress of gastric cancer etiology: N-nitrosamides 1999s

Table 2 Status of gastric juice samples from four human volunteers and formation of NMU 30 min after taking 40 mL of diluted fish sauce and 500 μmol of nitrite[9]

Sample’s origin	Total volume of sample (mL)	pH of sample	Total amount of NMU detected in gastric lumen (nmol)
Male A	24	5.0	4
Male B	110	3.0	85
Female A	50	2.0	100
Female B	50	2.0	22