DeVoretz, K K A platform crutch convertible to forearm support for sitting. [electronic resource] - Archives of physical medicine and rehabilitation Apr 1968 - 238-40 p. digital Publication Type: Journal Article ISSN: 0003-9993 Subjects--Topical Terms: CrutchesHumansLocomotionPhysical and Rehabilitation Medicine--instrumentationPostureRehabilitation--instrumentationSpinal Cord Injuries--rehabilitation