SELECT cf,nome,cognome
FROM persona JOIN effettua ON cf=cf_med JOIN intervento ON ID_int=ID
WHERE tipo='LASER'
AND durata>2
AND data_e_ora= (SELECT MIN(data_e_ora)
FROM intervento
WHERE ID=effettua.ID_int)
AND cf_paz IN (SELECT cf
FROM persona JOIN intervento ON cf=cf_paz
WHERE sesso='F');