External links

ABO at BGMUT Blood Group Antigen Gene Mutation Database at NCBI, NIH
Encyclopædia Britannica, ABO blood group system
National Blood Transfusion Service
Steroid acne is an adverse reaction to corticosteroids, and presents as small, firm follicular papules on the forehead, cheeks, and chest. : 137  Steroid acne presents with monomorphous pink paupules, as well as comedones, which may be indistinguishable from those of acne vulgaris. Steroid acne is commonly associated with endogenous or exogenous sources of androgen, drug therapy, or diabetes and is less commonly associated with HIV infection or Hodgkins disease. See also
List of cutaneous conditions
Steroid folliculitis

References
External links


== External links ==