LAUGHLIN, M M Modified progressive resistance exercise: thirteen cases with prolonged quadriceps insufficiency. [electronic resource] - The Physical therapy review Dec 1958 - 825-6 p. digital Publication Type: Journal Article ISSN: 0735-7435 Standard No.: 10.1093/ptj/38.12.825 doi Subjects--Topical Terms: ExerciseExercise TherapyHumansMuscle, SkeletalMusclesTendonsThigh