Upper GI bleeding.
Nowak
A
A
Katowice, Poland.
Belsaguy
A F
AF
Yu
Z
Z
Hashiba
K
K
Mostafa
I
I
Chung
S
S
D000208:Acute Disease; D004630:Emergencies; D020776:Endoscopes, Gastrointestinal; D016099:Endoscopy, Gastrointestinal / Q000379:methods; D006471:Gastrointestinal Hemorrhage / Q000175:diagnosis* / Q000628:therapy; D006723:Hong Kong; D006801:Humans; D011044:Poland; D013997:Time Factors