Citation: C. Bertran et al., Macrofauna of the lower reach and estuary of Biobio river (Chile): changesassociated to seasonal changes of the river flow, REV CHIL HN, 74(2), 2001, pp. 331-340
Authors:
Parra, O
Palau, M
Barrueco, M
Amilibia, J
Leon, A
Oltra, J
Escarrabill, J
Citation: O. Parra et al., The effects of home visits on compliance with prescription of domiciliary oxygen teraphy. A multicenter study, ARCH BRONCO, 37(4), 2001, pp. 206-211
Authors:
Casini, S
Fossi, MC
Gavilan, JF
Barra, R
Parra, O
Leonzio, C
Focardi, S
Citation: S. Casini et al., Porphyrin levels in excreta of sea birds of the Chilean coasts as nondestructive biomarker of exposure to environmental pollutants, ARCH ENV C, 41(1), 2001, pp. 65-72
Authors:
Barra, R
Cisternas, M
Urrutia, R
Pozo, K
Pacheco, P
Parra, O
Focardi, S
Citation: R. Barra et al., First report on chlorinated pesticide deposition in a sediment core from asmall lake in central Chile, CHEMOSPHERE, 45(6-7), 2001, pp. 749-757
Authors:
Barra, R
Sanchez-Hernandez, JC
Orrego, R
Parra, O
Gavilan, JF
Citation: R. Barra et al., Bioavailability of PAHs in the Biobio river (Chile): MFO activity and biliary fluorescence in juvenile Oncorhynchus mykiss, CHEMOSPHERE, 45(4-5), 2001, pp. 439-444
Authors:
Gavilan, JF
Barra, R
Fossi, MC
Casini, S
Salinas, G
Parra, O
Focardi, S
Citation: Jf. Gavilan et al., Biochemical biomarkers in fish from different river systems reflect exposure to a variety of anthropogenic stressors, B ENVIR CON, 66(4), 2001, pp. 476-483
Authors:
Parra, O
Arboix, A
Bechich, S
Garcia-Eroles, L
Montserrat, JM
Lopez, JA
Ballester, E
Guerra, JM
Sopena, JJ
Citation: O. Parra et al., Time course of sleep-related breathing disorders in first-ever stroke or transient ischemic attack, AM J R CRIT, 161(2), 2000, pp. 375-380
Authors:
Urrutia, R
Sabbe, K
Cruces, F
Pozo, K
Becerra, J
Araneda, A
Vyverman, W
Parra, O
Citation: R. Urrutia et al., Paleolimnological studies of Laguna Chica of San Pedro (VIII Region): Diatoms, hydrocarbons and fatty acid records, REV CHIL HN, 73(4), 2000, pp. 717-728
Authors:
Cisternas, M
Torres, L
Urrutia, R
Araneda, A
Parra, O
Citation: M. Cisternas et al., Environmental comparison, through sedimentary records, between pre-Hispanic and current conditions of a lacustrine system, REV CHIL HN, 73(1), 2000, pp. 151-162
Authors:
Focardi, S
Sanchez-Hernandez, JC
Barra, R
Gavilan, JF
Parra, O
Citation: S. Focardi et al., Fish cytochrome P4501A1 activity induced by Biobio river sediments, South Central Chile, B ENVIR CON, 65(2), 2000, pp. 175-182
Citation: P. Gonzalez et al., Modelling wastewater discharges from the bleached kraft cellulose industryin the Bio Bio River Basin (8th Region - Chile), LATIN AM A, 29(1), 1999, pp. 21-26
Authors:
Parra, O
Ojeda, A
Combellas, J
Gabaldon, L
Escobar, A
Martinez, N
Benezra, M
Citation: O. Parra et al., Blood metabolites and their relationship with production variables in dual-purpose cows in Venezuela, PREV VET M, 38(2-3), 1999, pp. 133-145
Authors:
Arraga-Alvarado, C
Palmar, M
Parra, O
Salas, P
Citation: C. Arraga-alvarado et al., Fine structural characterisation of a Rickettsia-like organism in human platelets from patients with symptoms of ehrlichiosis, J MED MICRO, 48(11), 1999, pp. 991-997
Authors:
Valdovinos, C
Figueroa, R
Cid, H
Parra, O
Araya, E
Privitera, S
Olmos, V
Citation: C. Valdovinos et al., Transplant of benthic organisms between lentic systems: Reflect the trace metals bioavailability in the environment?, BOL SOC CH, 43(4), 1998, pp. 467-475