N. Johnson

Retractors for radical antrum or transantral ethmosphenoidectomy operations.

N. Johnson, 1955, A.M.A. archives of otolaryngology.

Intrauterine contraceptive devices with missing tails (lost coils).

Bromham Dr, N. Johnson, Onwude Jl, 1991 .

A randomised cross over clinical trial comparing a thread retriever with IUD removing forceps.

D. Bromham, N. Johnson, Dalton Me, 1990 .

Should Cotton Wool Buds Be Used to Take Endocervical Smears? A Random Trial

D. Bromham, N. Johnson, R. Welsh, 1992 .

Crossing the Border for the Pill: An Analysis of the Decision to Purchase Oral Contraceptives Over- the-Counter from Mexican Pharmacies

N. Johnson, 2014 .