| Phenotype details |
see paper; ..., 31w-birth caesarean section maternal eclampsia, hypospadias with repair, sickle cell trait, prematurity, pregnancy complicated by maternal sickle cell disease; neonatal jaundice; 2<y6m-normal motor milestones; 2.5y-walk tiptoes with in-toeing of the feet, fatigue, tachypnea with exertion; 7y-falls, difficulty walking endurance due to muscle weakness; bilaterally shortened heel cords, walker prescribed; tachypnea, occasional tachycardia related to exertion persisted; never reached age-appropriate gross motor skill milestones (climbing stairs, hopping, maintaining balance), attentive, and interactive personality, no cranial nerve abnormalities; 7y-positive Gower sign, bilateral calf hypertrophy, shortened feet and lumbar lordosis |