Trinca, G <br/><br/>
Helmets for motor-cyclists: are there any medical grounds for exemption?  [electronic resource] 

 -  The Medical journal of Australia  Feb 1989 
 - 227 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0025-729X 
<br/><br/><label>Standard No.: </label>10.5694/j.1326-5377.1989.tb136445.x  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Australia<br/>Craniocerebral Trauma--prevention & control<br/>Head Protective Devices--standards<br/>Humans<br/>Motorcycles<br/>Protective Devices--standards