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Beltrán M, Alonso MC, Ojeda MB, Izquierdo A, Ferrer J, Picó C, Anglada L, Catalán G, Batiste-Alentorn E, Tusquets I, et al.Beltrán M, et al. Among authors: ferrer j.Ann Oncol. 1991 Jul;2(7):495-9. doi: 10.1093/oxfordjournals.annonc.a057999.Ann Oncol. 1991.PMID: 1832944Free article.Clinical Trial.
Gracenea M, Ferrer JR, González-Moreno O, Trullols M.Gracenea M, et al. Among authors: ferrer jr.J Morphol. 1997 Dec;234(3):223-232. doi: 10.1002/(SICI)1097-4687(199712)234:3<223::AID-JMOR2>3.0.CO;2-A.J Morphol. 1997.PMID: 29852623