1. The microbiologic flora of penile ulcerations;Chapel;J Infect Dis,1978
2. The diagnosis of sexually acquired genital ulceraions in black patients in Johannesburg;Duncan;S Afr J Sex Trans Dis,1981
3. Comparison of specimen collection and laboratory techniques for isolation of Haemophilus ducreyi;Hammond;J Clin Microbiol,1978
4. Determination of the hemin requirement of Haemophilus ducreyi: evaluation of the porphyrin test and media used in satellite growth;Hammond;J Clin Microbiol,1978
5. Modified haemin-containing medium for isolation of Haemophilus ducreyi;Kinghorn;Lancet,1982