Patient procedures Patients who present at the clinic will be screened to assess eligibility. A consent form in the local languages (Karen or Burmese at SMRU sites, Bahasa in South Sumatera at EOCRU site) will be administered to patients with a description of the intentions of this study in order to protect human subjects before any study specific procedures are conducted. It will be clearly stated that participation is voluntary and that the subject or guardian is free to discontinue participation or withdraw consent to participate at any time for any reason without prejudice to future care, and with no obligation to give the reason for discontinuation nor for withdrawal. The subject or guardian will be allowed as much time as needed to consider the information and the opportunity to question the authorized research member, or other independent parties to decide whether they will (or allow his/her charge to) participate in the study. Written informed consent will then be obtained by means of subject or guardian dated signature or thumb print (if unable to write), with signed and dated signature of a witness and dated signature of the person who presented and obtained the informed consent. All individual written informed consent forms will be stored securely.