CREATE TABLE table_26561508_1 (production_code VARCHAR, patient_portrayer VARCHAR)

What is the production code for the episode where the patient portrayer is Kathy Lamkin?
SELECT production_code FROM table_26561508_1 WHERE patient_portrayer = "Kathy Lamkin"
SELECT "production_code" FROM "table_26561508_1" WHERE "Kathy Lamkin" = "patient_portrayer"