 So the Health Maintenance Organization or HMO is a different group practice. So it has basically four components or principles. There is a system of health care that is providers where the patients can avail treatment that is system of health care. The second one the treatment services offered by these providers. Then there will be a enrolled group that is the people who enrolled in this health maintenance organization just like any other models like Delta Dental Plan or Blue Cross or Blue Shield. And the last mechanism is reimbursement. So how the providers were paid. So these are the models or how the dental personals are being reimbursed by the HMO. So the first staff model the HMO repays every person in the staff model. So all staffs of that staff model HMO pays individually. But in group model the HMO pays a bulk amount and the group model will distribute the amount with themselves. But the HMO pays a single bulk amount to the group model. The third one is independent practice association. So these two are group model. This is an independent practice like individually they are practicing at different places but they are agreed with the HMO plans. So they also get individually the reimbursement. So these are different why because this is not a group model these two are group model. And this is again an independent practice association type. But it works under a capitation plan that is why the primary care capitated network they also receives individually the amount. So this is how HMO reimburses the dental personals. So we have four groups that is staff model, group model, independent practice association and primary care capitated network. This is capitation plan and these are the components or principles of HMO. So HMO is nothing but a group model or a prepaid groups.