Holguín, A., Aracil, B., Álvarez, A., Barros, C., & Soriano, V. (2001). Prevalence of Human Immunodeficiency Virus Type 1 (HIV-1) Non-B Subtypes in Foreigners Living in Madrid, Spain, and Comparison of the Performances of the AMPLICOR HIV-1 MONITOR Version 1.0 and the New Automated Version 1.5. American Society for Microbiology.

Holguín, Africa, Belén Aracil, Amparo Álvarez, Carlos Barros, und Vincent Soriano. Prevalence of Human Immunodeficiency Virus Type 1 (HIV-1) Non-B Subtypes in Foreigners Living in Madrid, Spain, and Comparison of the Performances of the AMPLICOR HIV-1 MONITOR Version 1.0 and the New Automated Version 1.5. American Society for Microbiology, 2001.

Holguín, Africa, et al. Prevalence of Human Immunodeficiency Virus Type 1 (HIV-1) Non-B Subtypes in Foreigners Living in Madrid, Spain, and Comparison of the Performances of the AMPLICOR HIV-1 MONITOR Version 1.0 and the New Automated Version 1.5. American Society for Microbiology, 2001.