You may also purchase retirement service credit for unpaid personal medical leave time that occurred during your membership. For medical leave periods prior to April 25, 2004 you must provide documentation indicating you were unable to work due to a personal medical condition. Intermittent leave of absence and leave to care for family members may not be purchased. The service will be credited under the same retirement plan that you were in at the time of the medical leave. The cost to purchase this type of service is the total of contributions that you would have made to VCERA for the length of time being purchased (based on the compensation and contribution rate during your leave of absence), plus the interest that would have accrued on those contributions since the time of your medical leave.