C尿素呼气试验 13C-urea breath ; 13C-urea breath test ; 14C-urea breath test ; 13Curea breath test

c尿素呼气试验 c urea breath test ; 14 c urease breath test ; 13 c urea breath test ; c urease breath test

C尿素酶呼气试验 C-urease expiratory test ; 14C-urease expiratory test