Cover -- Title Page -- Copyright Page -- Contents -- Author Presentation -- Preface -- Part 1. Experts Involved in Public Health Controversies -- Chapter 1. The Pharmaceutical Treatment of Premature Ejaculation: "Gray-Zone Communication" -- 1.1. Introduction -- 1.2. The ambiguities and controversies regarding dapoxetine -- 1.2.1. Semantic ambiguities surrounding PE -- 1.2.2. Therapeutic and etiological ambiguities surrounding dapoxetine -- 1.3. A textbook case study of a gray-zone communication strategy -- 1.3.1. The "scientification" effect and the erasure of the psychological and social dimensions of PE -- 1.3.2. Ambiguous figures of expertise and experts between science, medicine and marketing of influence -- 1.4. Conclusion -- 1.5. References -- Chapter 2. Battle of Expertise and Experts in the Media: The Case of Glyphosate (2000-2020) -- 2.1. Introduction -- 2.2. Battles of expertise in the media -- 2.2.1. Lay experts versus GMOs (2000-2011) -- 2.2.2. An outcry against Roundup! The Séralini affair: putting a health threat on the media agenda (2012-2014) -- 2.2.3. From Roundup to glyphosate: expertise and counter-expertise (2015-2018) -- 2.3. Experts in media battles -- 2.3.1. Lay expertise as anti-glyphosate evidence -- 2.3.2. Academic expertise as the sinews of journalistic warfare -- 2.3.3. Expertise as a Trojan horse for ideology -- 2.4. Conclusion -- 2.5. References -- Chapter 3. The Influence of Opinion Leaders on Health Shows: L'Amour en Questions (1994-1998) -- 3.1. Introduction -- 3.2. The expert as both an "authority figure" and an "influencer" -- 3.3. The "controversial" expert -- 3.4. The "engaged" expert -- 3.5. Conclusion -- 3.6. References -- Chapter 4. The Case of the Belgian Medical Reform Group and the Media (1964-1990) -- 4.1. Introduction -- 4.2. GERM (1964-1990) -- 4.3. A group of experts... who communicate.

4.3.1. Thierry Poucet's "unconventional" journalistic path to journalism -- 4.3.2. A group of "legitimate" experts? -- 4.4. GERM on the small screen -- 4.5. Conclusion -- 4.6. References -- Part 2. Lay Expertise versus Scientific Expertise -- Chapter 5. Presenting the Expert's Ethos in the Magazine Press: "Dr. H's Column" -- 5.1. Introduction -- 5.2. When medical expertise is embodied: the case of Dr. H -- 5.3. Asymmetry in doctor-patient discourse -- 5.4. Vulnerable pregnant women -- 5.5. The midwife, or the temptation of the creator? -- 5.6. The father's role -- 5.7. The limits of medical power -- 5.8. Conclusion -- 5.9. References -- Chapter 6. Caregivers in the Media: What is the Legitimacy in Their Expertise? -- 6.1. Introduction -- 6.2. Caregivers and their lay expertise in the media -- 6.2.1. Lay experiential expertise -- 6.2.2. Demonstrative relevance in the media space -- 6.3. The legitimacy of caregivers' expertise -- 6.3.1. The legitimacy of expertise -- 6.3.2. Non-media coverage of the caregiver's expertise -- 6.4. Conclusion -- 6.5. References -- Chapter 7. The Long Covid Patient: Legitimizing Patient Experience -- 7.1. Introduction -- 7.2. The emergence of legitimate expert knowledge -- 7.2.1. From lay knowledge to expertise: the role of empowerment -- 7.2.2. Legitimizing lay knowledge -- 7.3. Methodology -- 7.4. Results -- 7.4.1. Getting to know oneself and being recognized: avoiding invisibility -- 7.4.2. Stages in the legitimization process -- 7.5. Discussion -- 7.6. Conclusion -- 7.7. References -- Chapter 8. Patient Influencers: Towards a Double Layer of Expertise -- 8.1. Introduction -- 8.2. Literature review and research questions -- 8.3. Methodology -- 8.4. Discussion of results -- 8.4.1. The importance of legitimacy -- 8.4.2. Building influence: from lay expertise to peer support.

8.4.3. The professionalization of influencers as content creators -- 8.4.4. Features specific to the healthcare sector -- 8.4.5. Instrumentalization of influence in the service of other professional projects -- 8.5. Conclusion -- 8.6. References -- Chapter 9. Legitimizing Lay Expertise: The Contribution of Terminology -- 9.1. Introduction -- 9.2. Contextualization -- 9.2.1. Terminology -- 9.2.2. The changing medical paradigm: new grounds for terminology -- 9.2.3. Diabetology: a suitable field for a case study -- 9.3. Methodology -- 9.3.1. Hybrid data -- 9.3.2. A contrastive analysis -- 9.3.3. A tool-based approach -- 9.4. Analysis and initial results -- 9.4.1. Field-specific terminology in patient discourse -- 9.4.2. The absence of knowledge-rich contexts -- 9.4.3. The similarity of syntactic specificities -- 9.5. Conclusion -- 9.6. References -- List of Authors -- Index -- Other titles from ISTE in Health Engineering and Society -- EULA.