Peggy Nygren

发表

Rongwei Fu, Marian McDonagh, Miranda Walker, 2010 .

Rongwei Fu, Marian McDonagh, Miranda Walker, 2010 .

Rongwei Fu, Marian McDonagh, Miranda Walker, 2010 .

Rongwei Fu, Marian McDonagh, Miranda Walker, 2010 .

Peggy Nygren, Nancy Vuckovic, Sarah Kooienga, 2006, The Annals of Family Medicine.

Heidi D Nelson, Peggy Nygren, S. Teutsch, 2002, JAMA.

Jeanne-Marie Guise, Patricia Osterweil, Peggy Nygren, 2004, American journal of obstetrics and gynecology.