APA aipamena

De Hertogh, W., Vaes, P., Devroey, D., Louis, P., Carpay, H., Truijen, S., . . . Oostendorp, R. (2009). Preliminary results, methodological considerations and recruitment difficulties of a randomised clinical trial comparing two treatment regimens for patients with headache and neck pain. BioMed Central.

Chicago Style aipamena

De Hertogh, Willem, Peter Vaes, Dirk Devroey, Paul Louis, Hans Carpay, Steven Truijen, William Duquet, and Rob Oostendorp. Preliminary Results, Methodological Considerations and Recruitment Difficulties of a Randomised Clinical Trial Comparing Two Treatment Regimens for Patients With Headache and Neck Pain. BioMed Central, 2009.

MLA aipamena

De Hertogh, Willem, et al. Preliminary Results, Methodological Considerations and Recruitment Difficulties of a Randomised Clinical Trial Comparing Two Treatment Regimens for Patients With Headache and Neck Pain. BioMed Central, 2009.