OBSTRUCTING GASTRODUODENAL ULCERS. GENERAL FACTORS INFLUENCING INCIDENCE AND MORTALITY.
D044383:Black People; D004380:Duodenal Obstruction; D004381:Duodenal Ulcer; D005853:Geriatrics; D006801:Humans; D015994:Incidence; D010437:Peptic Ulcer; D011707:Pyloric Stenosis; D013223:Statistics as Topic; D013276:Stomach Ulcer
DUODENAL OBSTRUCTION; DUODENAL ULCER; GERIATRICS; NEGROES; PYLORIC STENOSIS; STATISTICS; STOMACH ULCER