Borollos lake Germany HCP HL-COM HLQ HLS-GER 2 Nepal Ophelia (optimising health literacy and access) process Public health & preventive medicine Standards for Educational and Psychological Testing agreement allergy prevention cardiac rehabilitation cardiovascular implants chronic pain co-design cochlear implants decision making eHealth literacy empowerment ethical aspects fishermen focus groups glaucoma implants health inequality health information sources health literacy health literacy development health literacy measurement health literacy questionnaire (HLQ)