Monardi F, Glantz SA
Colfax GN, Bindman AB
Braveman P, Pearl M, Egerter S, Marchi K, Williams R
Newacheck PW, Halfon N
Chesney MA, Barrett DC, Stall R
Macdonald H, Aguinaga S, Glantz SA
Cates W, Chesney MA, Cohen MS