1. Comparison of oxprenolol and methyldopa in hypertension. A within-patient double-blind trial;Barritt, D.W.; Marshall, A.J.; Heaton, S.;Lancet,1976
2. Comparison of antihypertensive activity of beta blocking drugs during chronic treatment;Davidson, C.; Thadani, U.; Singleton, W.; Taylor, S.H.;British Medical Journal,1976
3. Propranolol in hypertension: a dose-response study;Galloway, D.B.; Glover, S.C.; Heitdry, W.G.; Logie, A.W.; Petrie, J.C.; Smith, M.C.; Lewis, J.A.; Simpson, W.T.;British Medical J'ournal,1976
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