Vitamin A supplementation for retinitis pigmentosa.
Berson EL, Rosner B, Sandberg MA, Hayes KC, Nicholson BW, Weigel-DiFrano C, Willett W.
Berson EL, et al. Among authors: hayes kc.
Arch Ophthalmol. 1993 Nov;111(11):1456-9. doi: 10.1001/archopht.1993.01090110014001.
Arch Ophthalmol. 1993.
PMID: 8240091
Clinical Trial.
No abstract available.