Spooner, E O <br/><br/>
Practical Observations on the Vaccination Question.  [electronic resource] 

 -  Provincial medical & surgical journal  Jul 1850 
 - 365-8 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>Standard No.: </label>10.1136/bmj.s1-14.14.365  doi