1. The benign and malignant forms of orgasmic cephalgia;Lundberg, P.O.; Osterman, P.O.;Headache,1974
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3. Human sexual response;Masters, W.H.; Johnson, V.E.,1966
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5. Coital cephalgia and ischaemic muscle work of the lower limbs;Staunton, H.P.; Moore, J.;J Neurol Neurosurg Psychiatry,1978