Mangham-Jefferies, L; Hanson, K; Mbacham, W; Onwujekwe, O; Wiseman, V; (2014) What determines providers' stated preference for the treatment of uncomplicated malaria? Social science & medicine (1982), 104. pp. 98-106. ISSN 0277-9536 DOI: https://doi.org/10.1016/j.socscimed.2013.12.024

Ezeoke, OP; Ezumah, NN; Chandler, CC; Mangham-Jefferies, LJ; Onwujekwe, OE; Wiseman, V; Uzochukwu, BS; (2012) Exploring health providers' and community perceptions and experiences with malaria tests in South-East Nigeria: a critical step towards appropriate treatment. Malaria journal, 11. p. 368. ISSN 1475-2875 DOI: https://doi.org/10.1186/1475-2875-11-368

Onwujekwe, O; Hanson, K; Uzochukwu, B; (2012) Examining Inequities in Incidence of Catastrophic Health Expenditures on Different Healthcare Services and Health Facilities in Nigeria. PloS one, 7 (7). ISSN 1932-6203 DOI: https://doi.org/10.1371/journal.pone.0040811

Onwujekwe, O; Hanson, K; Uzochukwu, B; Ezeoke, O; Eze, S; Dike, N; (2010) Geographic inequities in provision and utilization of malaria treatment services in southeast Nigeria: Diagnosis, providers and drugs. Health policy (Amsterdam, Netherlands), 94 (2). pp. 144-149. ISSN 0168-8510 DOI: https://doi.org/10.1016/j.healthpol.2009.09.010 Full text not available from this repository.

Uguru, NP; Onwujekwe, OE; Tasie, NG; Uzochukwu, BS; Ezeoke, UE; (2010) Do consumers' preferences for improved provision of malaria treatment services differ by their socio-economic status and geographic location? A study in southeast Nigeria. BMC public health, 10. ISSN 1471-2458 DOI: https://doi.org/10.1186/1471-2458-10-7

Onwujekwe, O; Hanson, K; Uzochukwu, B; Ichoku, H; Ike, E; Onwughalu, B; (2009) Are malaria treatment expenditures catastrophic to different socio-economic and geographic groups and how do they cope with payment? A study in southeast Nigeria. Tropical medicine & international health, 15 (1). pp. 18-25. ISSN 1360-2276 DOI: https://doi.org/10.1111/j.1365-3156.2009.02418.x Full text not available from this repository.

Onwujekwe, O; Kaur, H; Dike, N; Shu, E; Uzochukwu, B; Hanson, K; Okoye, V; Okonkwo, P; (2009) Quality of anti-malarial drugs provided by public and private healthcare providers in south-east Nigeria. Malaria journal, 8. p. 22. ISSN 1475-2875 DOI: https://doi.org/10.1186/1475-2875-8-22

Uzochukwu, BS; Obikeze, EN; Onwujekwe, OE; Onoka, CA; Griffiths, UK; (2009) Cost-effectiveness analysis of rapid diagnostic test, microscopy and syndromic approach in the diagnosis of malaria in Nigeria: implications for scaling-up deployment of ACT. Malaria journal, 8 (1). p. 265. ISSN 1475-2875 DOI: https://doi.org/10.1186/1475-2875-8-265

Onwujekwe, O; Fox-Rushby, J; Hanson, K; (2008) Construct validity of the bidding game, binary with follow-up, and a novel structured haggling question format in determining willingness to pay for insecticide-treated mosquito nets. Medical decision making, 28 (1). pp. 90-101. ISSN 0272-989X DOI: https://doi.org/10.1177/0272989X07308748 Full text not available from this repository.

Onwujekwe, O; Hanson, K; Uzochukwu, B; (2008) Are Malaria Treatment Expenditures Catastrophic to Different Socio-Economic and Geographic Groups and How Do They Pay in Southeast Nigeria? [Conference or Workshop Item] http://researchonline.lshtm.ac.uk/id/eprint/5848 Full text not available from this repository.

Onwujekwe, O; Ojukwu, J; Shu, E; Uzochukwu, B; (2007) Inequities in Valuation of Benefits, Choice of Drugs, and Mode of Payment for Malaria Treatment Services Provided by Community Health Workers in Nigeria. The American journal of tropical medicine and hygiene, 77 (1). pp. 16-21. ISSN 0002-9637 http://researchonline.lshtm.ac.uk/id/eprint/9428

Onwujekwe, O; Uzochukwu, B; Ojukwu, J; Dike, N; Shu, E; (2007) Feasibility of a community health worker strategy for providing near and appropriate treatment of malaria in southeast Nigeria: An analysis of activities, costs and outcomes. Acta tropica, 101 (2). pp. 95-105. ISSN 0001-706X DOI: https://doi.org/10.1016/j.actatropica.2006.07.013 Full text not available from this repository.

Dike, N; Onwujekwe, O; Ojukwu, J; Ikeme, A; Uzochukwu, B; Shu, E; (2006) Influence of education and knowledge on perceptions and practices to control malaria in Southeast Nigeria. Social science & medicine (1982), 63 (1). pp. 103-106. ISSN 0277-9536 DOI: https://doi.org/10.1016/j.socscimed.2005.11.061 Full text not available from this repository.

Onwujekwe, O; Hanson, K; Fox-Rushby, J; (2006) Some indicators of socio-economic status may not be reliable and use of indices with these data could worsen equity. Health economics, 15 (6). pp. 639-44. ISSN 1057-9230 DOI: https://doi.org/10.1002/hec.1071 Full text not available from this repository.

Onwujekwe, O; Ojukwu, J; Ezumah, N; Uzochukwu, B; Dike, N; Soludo, E; (2006) SOCIO-ECONOMIC DIFFERENCES IN PREFERENCES AND WILLINGNESS TO PAY FOR DIFFERENT PROVIDERS OF MALARIA TREATMENT IN SOUTHEAST NIGERIA. The American journal of tropical medicine and hygiene, 75 (3). pp. 421-9. ISSN 0002-9637 http://researchonline.lshtm.ac.uk/id/eprint/11301

Uzochukwu, BSC; Onwujekwe, OE; (2006) Exemption policies and community preferences for tropical endemic diseases in the Bamako initiative programme in Nigeria. Tropical doctor, 36 (3). pp. 132-136. ISSN 0049-4755 DOI: https://doi.org/10.1258/004947506777978334 Full text not available from this repository.

Onwujekwe, O; (2005) Inequities in healthcare seeking in the treatment of communicable endemic diseases in Southeast Nigeria. Social science & medicine (1982), 61 (2). pp. 455-63. ISSN 0277-9536 DOI: https://doi.org/10.1016/j.socscimed.2004.11.066 Full text not available from this repository.

Onwujekwe, O; Dike, N; Uzochukwu, B; (2005) Issues of measuring and improving the treatment of malaria in sub-Saharan Africa. Tropical doctor, 35 (4). pp. 224-225. ISSN 0049-4755 DOI: https://doi.org/10.1258/004947505774938792 Full text not available from this repository.

Onwujekwe, O; Fox-Rushby, J; Hanson, K; (2005) Inter-rater and test-retest reliability of three contingent valuation question formats in south-east Nigeria. Health economics, 14 (5). pp. 529-36. ISSN 1057-9230 DOI: https://doi.org/10.1002/hec.928 Full text not available from this repository.

Onwujekwe, O; Hanson, K; Fox-Rushby, J; (2005) Do divergences between stated and actual willingness to pay signify the existence of bias in contingent valuation surveys? Social science & medicine (1982), 60 (3). pp. 525-536. ISSN 0277-9536 DOI: https://doi.org/10.1016/j.socscimed.2004.05.023 Full text not available from this repository.

Onwujekwe, O; Malik, EF; Mustafa, SH; Mnzavaa, A; (2005) Do malaria preventive interventions reach the poor? Socioeconomic inequities in expenditure on and use of mosquito control tools in Sudan. Health policy and planning, 21 (1). pp. 10-6. ISSN 0268-1080 DOI: https://doi.org/10.1093/heapol/czj004 Full text not available from this repository.

Onwujekwe, O; Ojukwu, J; Uzochukwu, B; Dike, N; Ikeme, A; Shu, E; (2005) Where do people from different socio-economic groups receive diagnosis and treatment for presumptive malaria, in south-eastern Nigeria? Annals of tropical medicine and parasitology, 99 (5). pp. 473-481. ISSN 0003-4983 DOI: https://doi.org/10.1179/136485905X51283 Full text not available from this repository.

Onwujekwe, O; Uzochukwu, B; (2005) Socio-economic and geographic differentials in costs and payment strategies for primary healthcare services in Southeast Nigeria. Health policy (Amsterdam, Netherlands), 71 (3). pp. 383-97. ISSN 0168-8510 DOI: https://doi.org/10.1016/j.healthpol.2004.06.006 Full text not available from this repository.

Uzochukwu, B; Onwujekwe, O; (2005) Healthcare reform involving the introduction of user fees and drug revolving funds: influence on health workers' behavior in southeast Nigeria. Health policy (Amsterdam, Netherlands), 75 (1). pp. 1-8. ISSN 0168-8510 DOI: https://doi.org/10.1016/j.healthpol.2005.01.019 Full text not available from this repository.

Wiseman, V; Onwujekwe, O; Matovu, F; Mutabingwa, TK; Whitty, CJ; (2005) Differences in willingness to pay for artemisinin-based combinations or monotherapy: experiences from the United Republic of Tanzania. Bulletin of the World Health Organization, 83 (11). pp. 845-52. ISSN 0042-9686 DOI: /S0042-96862005001100014

Onwujekwe, O; (2004) Criterion and content validity of a novel structured haggling contingent valuation question format versus the bidding game and binary with follow-up format. Social science & medicine (1982), 58 (3). pp. 525-37. ISSN 0277-9536 DOI: https://doi.org/10.1016/s0277-9536(03)00214-4 Full text not available from this repository.

Onwujekwe, O; Fox-Rushby, J; Hanson, K; (2004) Valuing the benefits of a health intervention using three different approaches to contingent valuation: re-treatment of mosquito bed-nets in Nigeria. Journal of health services research & policy, 9 (2). pp. 67-75. ISSN 1355-8196 DOI: https://doi.org/10.1258/135581904322987472 Full text not available from this repository.

Onwujekwe, O; Hanson, K; Fox-Rushby, J; (2004) Inequalities in purchase of mosquito nets and willingness to pay for insecticide-treated nets in Nigeria: challenges for malaria control interventions. Malaria journal, 3 (1). p. 6. ISSN 1475-2875 DOI: https://doi.org/10.1186/1475-2875-3-6

Onwujekwe, O; Uzochukwu, B; (2004) Stated and actual altruistic willingness to pay for insecticide-treated nets in Nigeria: validity of open-ended and binary with follow-up questions. Health economics, 13 (5). pp. 477-92. ISSN 1057-9230 DOI: https://doi.org/10.1002/hec.857 Full text not available from this repository.

Onwujekwe, O; Uzochukwu, B; Shu, E; Ibeh, C; Okonkwo, P; (2004) Is combination therapy for malaria based on user-fees worthwhile and equitable to consumers? Assessment of costs and willingness to pay in Southeast Nigeria. Acta tropica, 91 (2). p. 101. ISSN 0001-706X DOI: https://doi.org/10.1016/j.actatropica.2004.03.005 Full text not available from this repository.

Onwujekwe, O; Hanson, K; Fox-Rushby, JA; (2003) Who buys insecticide-treated nets? Implications for increasing coverage in Nigeria. Health policy and planning, 18 (3). pp. 279-89. ISSN 0268-1080 DOI: https://doi.org/10.1093/heapol/czg034 Full text not available from this repository.

Onwujekwe, O; Chima, R; Shu, E; Nwagbo, D; Akpala, C; Okonkwo, P; (2002) Altruistic willingness to pay in community-based sales of insecticide-treated nets exists in Nigeria. Social science & medicine (1982), 54 (4). pp. 519-27. ISSN 0277-9536 DOI: https://doi.org/10.1016/S0277-9536(01)00047-8 Full text not available from this repository.

Onwujekwe, O; Chima, R; Shu, E; Okonkwo, P; (2002) Community-directed treatment with ivermectin in two Nigerian communities: an analysis of first year start-up processes, costs and consequences. Health policy (Amsterdam, Netherlands), 62 (1). pp. 31-51. ISSN 0168-8510 DOI: https://doi.org/10.1016/S0168-8510(01)00226-3 Full text not available from this repository.

Onwujekwe, O; Nwagbo, D; (2002) Investigating starting-point bias: a survey of willingness to pay for insecticide-treated nets. Social science & medicine (1982), 55 (12). pp. 2121-30. ISSN 0277-9536 DOI: https://doi.org/10.1016/S0277-9536(01)00355-0 Full text not available from this repository.

Onwujekwe, O; Shu, E; Onwuameze, O; Ndum, C; Okonkwo, P; (2001) Onchocerciasis control in Nigeria: will households be able to afford community-directed treatment with ivermectin? Acta tropica, 80 (3). pp. 277-281. ISSN 0001-706X DOI: https://doi.org/10.1016/S0001-706X(01)00162-0 Full text not available from this repository.