title: [Play rules for the DPD membership].
mesh_terms: D006801:Humans; D009426:Netherlands; D010415:Pensions; D012179:Retirement; D012952:Societies / Q000458:organization & administration*; D018634:Veterinarians / Q000191:economics*; D014730:Veterinary Medicine / Q000191:economics / Q000458:organization & administration*