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. 2022 Apr 4;23:254. doi: 10.1186/s13063-022-06148-5

Fig. 2.

Fig. 2

Recruitment strategies from August 2018 to October 2019. SM, social media posting; C, community organizations contacted; CL, clinic contact; CO, conference; E, emails to listserv or smaller groups; F, online forum posting; DM, direct mailing; R, registry. Not shown: flyers posted or “word of mouth”