I am working on logic but unable to find a way around it, can you guys please help me out.
(1) There are Patient Results Coming into the Database Each Month.
(2) I need to put a count Of patient Results Starting from the Month of may, In the Count the patient Will be included only if he has more the 4 months results. For eg: he will be included in May only if he has results for the Month of jan,Feb,March,Aprl
(3) In jun also the count of patients will include, those patients who has more then 4 Months of Results earlier.