Tell your story well and start your clinical volunteering as soon as you can, as Dox4lyfe mentions. My concern is that without USA clinical experience you would get interviews but then be waitlisted. So if you can remedy your lack of clinical experience by interview time you will be in a good position to get offers.I understand the medical tourism viewpoint but I was hoping that because it is an organization that I have been working with for years and the mission was in the country that my family is from (which is where my interest in medicine began as explained in my personal statement) that I would be okay having that as my only clinical volunteering. I definitely agree clinical volunteering is a weak point for me however I didn't realize that it was weak enough to put me in the 5%.
Here's what I'm thinking of doing now (and I would appreciate your input on this idea): Since I'll be graduating in December, I could use the "is there anything else you want us to know" space on secondaries to state how I'll be spending my gap semester (a clinical volunteering position). Or if the secondary has a gap year prompt, I'll write about it there. I was planning on doing something medically related in my semester off anyway, but now I think it may be important to explicitly state it on each secondary. I know it might be "too little, too late" but maybe adcoms will be a little more reassured seeing I'm planning on specifically clinically volunteering? My interest in medicine stems from a combination of my experience being from a medically underserved region, volunteering with underserved populations, and shadowing in low-income counties. I feel that I was able to write a compelling statement explaining why I want to be a doctor based on the experiences I currently have. But I do understand that without the mission being really counted, I'm missing a critical component. Thank you for pointing that out.