TY  - GEN
AU  - Sievers,M L
TI  - Letter: Peptic-ulcer factors in American Indians
SN  - 0003-4819
PY  - 1976///0823
KW  - Arizona
KW  - Humans
KW  - Indians, North American
KW  - Peptic Ulcer
KW  - epidemiology
N1  - Publication Type: Journal Article
UR  - https://doi.org/10.7326/0003-4819-84-6-755_3
ER  -