共 50 条
- [1] THE RISK OF CANCER AND SERUM VITAMIN-A AND VITAMIN-E AND CAROTENOIDS NEW ENGLAND JOURNAL OF MEDICINE, 1984, 311 (02): : 121 - 122
- [2] SERUM VITAMIN-A AND THE RISK OF COLORECTAL-CANCER GASTROENTEROLOGY, 1993, 104 (04) : A463 - A463
- [3] LOW SERUM VITAMIN-A LEVELS AND THE RISK OF CANCER SOUTH AFRICAN MEDICAL JOURNAL, 1981, 59 (04): : 94 - 94