Kamimura, A; Takahashi, T (2002). «Procyanidin B-3, isolated from barley and identified as a hair-growth stimulant, has the potential to counteract inhibitory regulation by TGF-beta1». Experimental dermatology11 (6): 532-41. PMID12473061. doi:10.1034/j.1600-0625.2002.110606.x.
Quinde-Axtell, Zory; Baik, Byung-Kee (2006). «Phenolic Compounds of Barley Grain and Their Implication in Food Product Discoloration». Journal of Agricultural and Food Chemistry54 (26): 9978-84. PMID17177530. doi:10.1021/jf060974w.
Benavides, Angelyne; Montoro, Paola; Bassarello, Carla; Piacente, Sonia; Pizza, Cosimo (2006). «Catechin derivatives in Jatropha macrantha stems: Characterisation and LC/ESI/MS/MS quali–quantitative analysis». Journal of Pharmaceutical and Biomedical Analysis40 (3): 639-47. PMID16300918. doi:10.1016/j.jpba.2005.10.004.
Delcour, Jan. A.; Ferreira, Daneel; Roux, David G. (1983). «Synthesis of condensed tannins. Part 9. The condensation sequence of leucocyanidin with (+)-catechin and with the resultant procyanidins». Journal of the Chemical Society, Perkin Transactions 1: 1711. doi:10.1039/P19830001711.
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Kamimura, A; Takahashi, T (2002). «Procyanidin B-3, isolated from barley and identified as a hair-growth stimulant, has the potential to counteract inhibitory regulation by TGF-beta1». Experimental dermatology11 (6): 532-41. PMID12473061. doi:10.1034/j.1600-0625.2002.110606.x.
Quinde-Axtell, Zory; Baik, Byung-Kee (2006). «Phenolic Compounds of Barley Grain and Their Implication in Food Product Discoloration». Journal of Agricultural and Food Chemistry54 (26): 9978-84. PMID17177530. doi:10.1021/jf060974w.
Benavides, Angelyne; Montoro, Paola; Bassarello, Carla; Piacente, Sonia; Pizza, Cosimo (2006). «Catechin derivatives in Jatropha macrantha stems: Characterisation and LC/ESI/MS/MS quali–quantitative analysis». Journal of Pharmaceutical and Biomedical Analysis40 (3): 639-47. PMID16300918. doi:10.1016/j.jpba.2005.10.004.