Prevalence of plasmid-bearing and plasmid-free Chlamydia trachomatis infection among women who visited obstetrics and gynecology clinics in Malaysia by Yeow, T.C., Wong, Won Fen, Sabet, N.S., Sulaiman, S., Shahhosseini, F., Tan, G.M.Y., Movahed, E., Looi, C.Y., Shankar, E.M., Gupta, R., Arulanandam, B.P., Hassan, Jamiyah, AbuBakar, Sazaly