Fleming KL, Sokoloff A, Raine TR

Phillips KA, Grossman D, Weitz TA, Trussell J

Dehlendorf C, Ruskin R, Darney P, Vittinghoff E, Grumbach K, Steinauer J

Diedrich J, Drey E, Society of Family Planning

Freedman L, Landy U, Steinauer J

Allen RH, Raker C, Steinauer J, Eastwood KL, Kacmar JE, Boardman LA

Dehlendorf C, Levy K, Ruskin R, Steinauer J

Rodriguez MI, Caughey AB, Edelman A, Darney PD, Foster DG

Paul M, Goodman S, Felix J, Lewis R, Hawkins M, Drey E

Steinauer J, LaRochelle F, Rowh M, Backus L, Sandahl Y, Foster A