APA

Li G., Haq W., Xiang L., Lou B. S., Hughes R., De Leon I. A., Davis P., Gillespie T. J., Romanowski M., Zhu X., Misicka A., Lipkowski A. W., Porreca F., Davis T. P., Yamamura H. I., O'Brien D. F. & Hruby V. J. (19990114). Modifications of the 4,4'-residues and SAR studies of Biphalin, a highly potent opioid receptor active peptide. : Bioorganic & medicinal chemistry letters.

Chicago

Li G, Haq W, Xiang L, Lou B S, Hughes R, De Leon I A, Davis P, Gillespie T J, Romanowski M, Zhu X, Misicka A, Lipkowski A W, Porreca F, Davis T P, Yamamura H I, O'Brien D F and Hruby V J. 19990114. Modifications of the 4,4'-residues and SAR studies of Biphalin, a highly potent opioid receptor active peptide. : Bioorganic & medicinal chemistry letters.

Harvard

Li G., Haq W., Xiang L., Lou B. S., Hughes R., De Leon I. A., Davis P., Gillespie T. J., Romanowski M., Zhu X., Misicka A., Lipkowski A. W., Porreca F., Davis T. P., Yamamura H. I., O'Brien D. F. and Hruby V. J. (19990114). Modifications of the 4,4'-residues and SAR studies of Biphalin, a highly potent opioid receptor active peptide. : Bioorganic & medicinal chemistry letters.

MLA

Li G, Haq W, Xiang L, Lou B S, Hughes R, De Leon I A, Davis P, Gillespie T J, Romanowski M, Zhu X, Misicka A, Lipkowski A W, Porreca F, Davis T P, Yamamura H I, O'Brien D F and Hruby V J. Modifications of the 4,4'-residues and SAR studies of Biphalin, a highly potent opioid receptor active peptide. : Bioorganic & medicinal chemistry letters. 19990114.