1. Electroencephalographic changes induced by piperazine in children;Bettecken;Z Kinderheilkd,1957
2. Les troubles de conduction induits par la pipérazine: étude clinique et expérimentale;Gouffault;Arch Mal Coeur Vaiss,1973
3. Electrocardiographic profile of oral piperazine citrate in healthy volunteers;Onuaguluchi;Am J Ther,2006
4. Allergenicity of piperazine: a study in environmental aetiology;McCullagh;Br J Ind Med,1968
5. Occupational asthma due to piperazine citrate;Quirce;J Investig Allergol Clin Immunol,2006