Crake, T., Quyyumi, A. A., Wright, C., Mockus, L., & Fox, K. M. (1987). Treatment of angina pectoris with nifedipine: A double blind comparison of nifedipine and slow-release nifedipine alone and in combination with atenolol.

Crake, T., A A. Quyyumi, C. Wright, L. Mockus, و K M. Fox. Treatment of Angina Pectoris With Nifedipine: A Double Blind Comparison of Nifedipine and Slow-release Nifedipine Alone and in Combination With Atenolol. 1987.

Crake, T., et al. Treatment of Angina Pectoris With Nifedipine: A Double Blind Comparison of Nifedipine and Slow-release Nifedipine Alone and in Combination With Atenolol. 1987.