TY  - GEN
AU  - Samsonov,V A
TI  - [Various changes in the characteristics of peptic ulcer during the past 20 years (according to the data of therapeutic-preventive institutions of Petrozavodsk)]
SN  - 0040-3660
PY  - 1978///0612
KW  - Adolescent
KW  - Adult
KW  - Age Factors
KW  - Aged
KW  - Child
KW  - Female
KW  - Humans
KW  - Male
KW  - Middle Aged
KW  - Peptic Ulcer
KW  - complications
KW  - Russia
KW  - Sex Ratio
KW  - Urban Population
N1  - Publication Type: Comparative Study; English Abstract; Journal Article
ER  -