title: Cause of serious illness among HAART-users not clear.
mesh_terms: D017088:AIDS-Related Opportunistic Infections / Q000150:complications*; D023241:Antiretroviral Therapy, Highly Active / Q000009:adverse effects; D005260:Female; D015658:HIV Infections / Q000150:complications / Q000188:drug therapy*; D006801:Humans; D008297:Male