Which services are specifically excluded from Medicare coverage under 42 CFR 411.15? Answer in under 100 words.

Under 42 CFR 411.15, Medicare excludes routine physical checkups, low vision aids, refractive eye exams, hearing aids, most immunizations, orthopedic shoes, custodial care, cosmetic surgery, most dental services, personal comfort services, services not reasonable and necessary for specified purposes, foot care, certain services to hospital patients by non-hospital entities, assistance-at-surgery in cataract operations, experimental devices, services to SNF residents by non-SNF entities, assisted suicide, home health services without claim submission, and items from non-contract suppliers in competitive bidding.