- Moreno Ruiz D, Alvis Zakzuk J, Martinez Zakzuk J, Carrasquilla Sotomayor M, Alvis Zakzuk R, Paz Wilches JJ, et al. Direct costs for patients with chronic kidney disease from a cardiovascular risk management program in a Colombian poor population. In: VALUE IN HEALTH. Elsevier Science INC 360 Park Ave South, New York, NY 10010-1710 USA; 2017. p. A356–A356.
- Florez Tanus A, Parra DM, Zakzuk J, Alvis Guzman N, Caraballo L, Marrugo Arnedo C, et al. Asthma-related direct costs and health care utilization by severity in Colombia. In: VALUE IN HEALTH. Elsevier Science INC 360 Park Ave South, New York, NY 10010-1710 USA; 2017. p. A355–A355.
- Beltran, J. A., Consuelo, D. V., Romero, M., Caballer, V., Alvis-Guzmán, N., & De la Hoz Restrepo, F. (2017). Gasto Farmacéutico Ambulatorio Y Hospitalario En Pacientes Con Cáncer De Mama En La Comunidad De Valencia. Análisis De Lo Grupos De Riesgo Clínico 2014-2015. Value in Health, 20(9), A873.
- Alvis-Guzman, N., De la Hoz-Restrepo, F., & Pinzon-Redondo, H. (2018). Economic Impact of Infections and Antibiotics. In Sepsis (pp. 11-24). Springer, New York, NY.
- Florez Tanus A, Marrugo Amedo C, Gomez de la Rosa F, Lopez Pajaro K, Mora Jayutt G, Mazenett Granados E, et al. Direct costs of medical care from intensive care units in Colombia. In: VALUE IN HEALTH. Elsevier Science INC 360 Park Ave South, New York, NY 10010-1710 USA; 2017. p. A372–A372.
- Santos-Moreno, P., Peralta, L. V., Alvis-Zakzuk, N. J., Trespalacios, H. J., Sotomayor, M. C., Trespalacios, J. J., & Guzman, N. A. (2017). Conventional and Biological Therapy in Patients with Rheumatoid Arthritis. A Cost Analysis in Colombia. Value in Health, 20(9), A938. http://www.valueinhealthjournal.com/article/S1098-3015(17)33309-0/abstract
- Alvis, N. J., Díaz, D. P., Castillo, L., Alvis, N. R., Bermúdez, M. I., Berrío, O. M., … & Castañeda, C. A. (2017). Costos de la prueba de tamizaje para Chagas en donantes de dos Bancos de Sangre de Colombia, 2015. Biomédica, 38. https://www.revistabiomedica.org/index.php/biomedica/article/view/3477
- Alvis-Guzmán N, Marín-Correa C, Castañeda-Orjuela C, Sánchez-Ruiz C, Sanchez Largaespada JF, Carrasquilla-Sotomayor M. Costos de tratamiento hospitalario de la infección respiratoria aguda grave en niños de Nicaragua. Infectio. 2015;19(4):144-9. http://www.sciencedirect.com/science/article/pii/S0123939215000417
- Alvis-Guzmán N, Marin-Correa C, Castañeda-Orjuela C, Sanchez-Ruiz C, Carrasquilla-Sotomayor M, Sanchez F, et al. Hospitalization costs due to severe acute respiratory infection (SARI) in three central American Countries. VALUE IN HEALTH. 18(3):A253. http://www.valueinhealthjournal.com/action/doSearch?journalCode=jval&occurrences=all&searchText=alvis+guzman&searchType=quick&searchScope=fullSite&dateYear1field=custom&dateYearRange1field=20152015&selectedSType=range-2015&filterModify=true
- Castañeda-Orjuela C, Díaz-Jiménez D, Rodríguez-Castillo L, Paternina-Caicedo A, Pinzón-Redondo H, Alvis-Guzman N, et al. Medical care costs of Chikungunya Virus infection in a Pediatric Population in Colombia. VALUE IN HEALTH.18(3):A254-A5. http://www.valueinhealthjournal.com/action/doSearch?journalCode=jval&occurrences=all&searchText=alvis+guzman&searchType=quick&searchScope=fullSite&dateYear1field=custom&dateYearRange1field=20152015&selectedSType=range-2015&filterModify=true
- Pinzon-Redondo Hernando, Coronell-Rodriguez Wilfrido, Diaz-Martinez Ines, Guzmán-Corena Angel, Constenla Dagna, Alvis-Guzmán Nelson. Cost and impact of a community Outbreak of Meningococcal Disease in a Colombian Caribbean City. J HEALTH POPUL NUTR 2014 Sep;32(3):539-548. http://www.jhpn.net/index.php/jhpn/article/view/2835/1059
- Lemos, E. V., Fernando, P., Alvis, N., Quevedo, E., Einarson, T. R., Castañeda, C., & Kawai, K. (2013). Costos en pacientes con infección por Acinetobacter baumannii en Colombia. Infectio, 17(4), 185-192. https://www.sciencedirect.com/science/article/pii/S0123939213707306
- Alvis-Guzman, J. Orozco-Africano, A. Paternina-Caicedo, W. Coronell-Rodríguez, L. Alvis-Estrada, D. Jervis-Jálabe, F. De la Hoz-Restrepo. Treatment costs of diarrheal disease and all-cause pneumonia among children under- 5 years of age in Colombia. Vaccine, Volume 31, Supplement 3, 2 July 2013, Pages C58-C62. http://www.sciencedirect.com/science/article/pii/S0264410X13006130
- N, H. Pinzon, W. Coronell. PIN44 – Cost Of Outbreak Of Meningococcal Disease In A Colombian Caribbean City, 2012. Value in Health, Volume 16, Issue 3, May 2013, Page A87. Disponible en http://www.ispor.org/publications/value/JVAL_16-3_FINAL.pdf
- ALVIS-GUZMAN, Nelson; ALVIS-ESTRADA, Luis and DE LA HOZ, Fernando. The cost of connecting poor households to natural gas in Colombia and its impact on health, 2007. salud pública. 2012, vol.14, n.1, pp. 28-40. ISSN 0124-0064. http://www.scielo.org.co/pdf/rsap/v14n1/v14n1a03.pdf
- ALVIS-GUZMAN, Nelson; PATERNINA-CAICEDO, Angel; ALVIS-ESTRADA, Luis y DE LA HOZ-RESTREPO, Fernando. Costos directos de varicela complicada en una población pediátrica de Colombia. Rev. salud pública. 2011, vol.13, n.6, pp. 921-929. ISSN 0124-0064. http://www.scielosp.org/scielo.php?script=sci_arttext&pid=S0124-00642011000600005&lng=es&nrm=iso&tlng=es
- Alvis N., Orozco-Africano J.M., Paternina-Caicedo A., Coronell W., Jervis-Jálabe D., De La Hoz F. Costs of Probable Viral Diarrhea in Children Under Five Years Old in Colombia. PIN19. Value in Health, Volume 15, Issue 4, June 2012, Page A240. http://www.ispor.org/valueinhealth_index.asp
- Alvis, J.M. Orozco-Africano, A. Paternina-Caicedo, W. Coronell, D. Jervis-Jálabe, F. De La Hoz. Costs of Probable Bacterial Pneumonia in Children Under 5 Years Old in Colombia. PIN20. Value in Health, Volume 15, Issue 4, June 2012, Page A240 http://www.ispor.org/valueinhealth_index.asp
- Romero M, Arango CH, Alvis N. Suarez J, Duque A. Costos de la Esclerosis Múltiple en Colombia. Value in health. 14 (2011) S48 – S50 http://www.ispor.org/consortiums/LatinAmerica/documents/ViH/Costos-de-la-Esclerosis-Multiple.pdf
- M Romero, CH Arango, N Alvis, O Canon. CS17 Costos de la esclerosis múltiple en Colombia Value in Health, Volume 12, Issue 7, October 2009, Page A491 http://www.sciencedirect.com/science?_ob=ArticleListURL&_method=list&_ArticleListID=1996763228&_sort=r&_st=13&view=c&_acct=C000025027&_version=1&_urlVersion=0&_userid=506061&md5=20341a6158e4525d18b06c0f19a76112&searchtype=a
- Alvis L, Alvis N, Costos Económicos de la Mortalidad Evitable en Cartagena de Indias, 2000–2005 Revista de Salud Pública. 2009. 11(6) 970-978 http://scielosp.org/pdf/rsap/v11n6/v11n6a13.pdf
- Alvis L, Alvis N, De la Hoz F, Gasto Privado en Salud de los hogares de Cartagena de Indias, 2004. Rev Salud Publica (Bogota). 2007 Jan-Mar; 9(1):11-25 http://www.scielosp.org/pdf/rsap/v9n1/v9n1a03.pdf
- Alvis N, Dela Hoz F, Higuera A, Pastor D, Di Fabio J. The economic costs of pneumonía in children under 2 years of age in Colombia. Rev Pan Sal Pub. Volume 17, (3), April 2005 http://www.scielosp.org/scielo.php?script=sci_issuetoc&pid=1020-498920050003&lng=es&nrm=iso