Purchasing long term disability insurance requires knowledge in the part of the policyholder to avoid migraines in terms of availability, premium processing, guarantees, and the claiming of benefits.

• 购买长期伤残保险的需要，在知识的一部分，投保人，以避免偏头痛在条款的可用性，保费处理，担保，以及声称的惠益。