ALTER TABLE `medical_records` 
CHANGE COLUMN `clinical` `clinical` TEXT NULL ;

ALTER TABLE `medical_records` 
CHANGE COLUMN `quirugicos` `quirugicos` TEXT NULL DEFAULT NULL ,
CHANGE COLUMN `traumatic` `traumatic` TEXT NULL DEFAULT NULL ,
CHANGE COLUMN `allergic` `allergic` TEXT NULL DEFAULT NULL ,
CHANGE COLUMN `medical_history` `medical_history` TEXT NULL DEFAULT NULL ,
CHANGE COLUMN `visual` `visual` TEXT NULL DEFAULT NULL ,
CHANGE COLUMN `auditive` `auditive` TEXT NULL DEFAULT NULL ;
