SELECT DISTINCT T1.first_name ,  T3.treatment_type_description FROM professionals AS T1 JOIN Treatments AS T2 ON T1.professional_id  =  T2.professional_id JOIN Treatment_types AS T3 ON T2.treatment_type_code  =  T3.treatment_type_code
List the first name of all the professionals along with the description of the treatment they have done.
SELECT DISTINCT T1.first_name , T3.treatment_type_description FROM professionals AS T1 JOIN Treatments AS T2 ON T1.professional_id = T2.professional_id JOIN Treatment_types AS T3 ON T2.treatment_type_code = T3.treatment_type_code
select distinct t1 . first_name , t3 . treatment_type_description from professionals as t1 join treatments as t2 on t1 . professional_id = t2 . professional_id join treatment_types as t3 on t2 . treatment_type_code = t3 . treatment_type_code
List the first name of all the professionals along with the description of the treatment they have done .