CREATE TABLE [dbo].[patient_attribute]
(
	[pt_attr_key] INT NOT NULL PRIMARY KEY, 
    [pt_key] INT NOT NULL, 
    [pt_attrm_key] INT NOT NULL, 
    [pt_attr_value] NVARCHAR(50) NOT NULL, 
    [modified_dt] DATETIME NOT NULL, 
    [modified_by_key] UNIQUEIDENTIFIER NOT NULL
)
