Wagner and Grossman theory is related to:
Palatal palsy
Vocal cord palsy
Facial palsy
Hypoglossal palsy
Semons law and wegner and Grossman hypothesis are both related to vocal cord palsy. Wagner grossman hypothesis states that in U/L recurrent laryngeal nerve palsy, cricothyroid muscle which receives innervation from superior laryngeal nerve keeps the cord in paramedian position due to its adduction action.