APA

Petro G. A., Spence T., Du Plessis J., Gertz A. M. & Morroni C. (20191226). Migration of etonogestrel contraceptive implants: Implications for difficult removals services need in southern Africa. : South African medical journal = Suid-Afrikaanse tydskrif vir geneeskunde.

Chicago

Petro G A, Spence T, Du Plessis J-P, Gertz A M and Morroni C. 20191226. Migration of etonogestrel contraceptive implants: Implications for difficult removals services need in southern Africa. : South African medical journal = Suid-Afrikaanse tydskrif vir geneeskunde.

Harvard

Petro G. A., Spence T., Du Plessis J., Gertz A. M. and Morroni C. (20191226). Migration of etonogestrel contraceptive implants: Implications for difficult removals services need in southern Africa. : South African medical journal = Suid-Afrikaanse tydskrif vir geneeskunde.

MLA

Petro G A, Spence T, Du Plessis J-P, Gertz A M and Morroni C. Migration of etonogestrel contraceptive implants: Implications for difficult removals services need in southern Africa. : South African medical journal = Suid-Afrikaanse tydskrif vir geneeskunde. 20191226.