Samsonov, V A <br/><br/>
[Various changes in the characteristics of peptic ulcer during the past 20 years (according to the data of therapeutic-preventive institutions of Petrozavodsk)].  [electronic resource] 

 -  Terapevticheskii arkhiv  1978 
 - 14-7 p.  digital 
<br/><br/> Publication Type: Comparative Study; English Abstract; Journal Article 
<br/><br/><label>ISSN: </label>0040-3660 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Adolescent<br/>Adult<br/>Age Factors<br/>Aged<br/>Child<br/>Female<br/>Humans<br/>Male<br/>Middle Aged<br/>Peptic Ulcer--complications<br/>Russia<br/>Sex Ratio<br/>Urban Population