Susceptibility to cephalosporins of penicillin-susceptible and penicillin-resistant strains of Neisseria gonorrhoeae from Philadelphia.

od Fekete, T, Serfass, D A, Lafredo, S C, Cundy, K R
Wydane 1989

Relative penicillin G resistance in Neisseria meningitidis and reduced affinity of penicillin-binding protein 3.

od Mendelman, P M, Campos, J, Chaffin, D O, Serfass, D A, Smith, A L, Sáez-Nieto, J A
Wydane 1988

Genetic and phenotypic diversity among ampicillin-resistant, non-beta-lactamase-producing, nontypeable Haemophilus influenzae isolates.

od Mendelman, P M, Chaffin, D O, Musser, J M, De Groot, R, Serfass, D A, Selander, R K
Wydane 1987