Affiliation is one clue
A physician belonging to the society is one piece of information about background and interests. It never means the society approved an individual treatment or guarantees effects.
This site lists the society affiliation from Dr. Yoshitomo Chihara's official profile. Affiliation and per-article review scope, dates, and confirmations are shown separately.
Meaning and limits of physician review
Physician review checks medical wording, distinctions between research stages and treatment, and explanations of risks and alternatives. Review raises accountability; it never guarantees an individual treatment's effectiveness or safety.
Article pages matter for who checked what, when, and in which scope. Check qualifications and affiliations alongside update dates, references, open questions, and advertising relations.
Six final questions
1) Is this research, clinical research, approved care, or private care? 2) Are my disease and condition included? 3) Do comparative studies support effects? 4) What are the main risks and unknowns? 5) What are the alternatives and aftercare plans? 6) What are the total costs and stopping terms? Society and credential names never replace these questions.