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Gómez Castellanos, J. Rubén; Prieto, José M.; Heinrich, Michael (2009). “Red Lapacho (Tabebuia impetiginosa)—A global ethnopharmacological commodity?”. Journal of Ethnopharmacology121 (1): 1–13. doi:10.1016/j.jep.2008.10.004. PMID18992801.
Felício AC, Chang CV, Brandão MA, Peters VM, Guerra Mde O (2002). “Fetal growth in rats treated with lapachol”. Contraception66 (4): 289–93. doi:10.1016/S0010-7824(02)00356-6. PMID12413627.
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de Cássia da Silveira E Sá R, de Oliveira Guerra M (2007). “Reproductive toxicity of lapachol in adult male Wistar rats submitted to short-term treatment”. Phytotherapy research : PTR21 (7): 658–62. doi:10.1002/ptr.2141. PMID17421057.