"I heard about 21 at 21 from some of the senior residents at my program and have been tuning in the past couple weeks. Just wanted to reach out and thank you for all that you do. I'm sure you are super busy but I really appreciate you taking the time to teach us every night. I'm learning so much 😀"

"Thank you so much for your lecture series the last couple weeks in preparation for the CORE exam! I felt very prepared for all the flaps/grafts questions and anatomy thanks to you!"

"Dr. Mariwalla - you are my HERO!!! I have been watching all of your boards university lectures on repeat and just breezed through the surgery core exam thanks to you (I could literally hear your voice saying "don't get tricked - you've got this" 😂) Thank you SO much for your time and sharing your knowledge and practice pearls... I am beyond grateful. You are such an inspiring physician and an amazing role model for female derm residents/aspiring Mohs surgeons! 🤍"

"I've been watching your videos for my surgery core exam and can I just say, they are SO HELPFUL! You're amazing, and you make it so easy to learn everything. And you have such a pleasant voice and your sense of humor... you are goals. Anyways just wanted to let you know that I appreciate you ❤️"

"Thank you so much for taking your time to teach us! I love tuning in to your sessions! I took the med derm and peds derm cores a few days ago and definitely even got questions right on those from what I learned on 21@21! I am so excited to learn more from you when 21@21 returns!"

"Hi Dr. Mariwalla, I took the core on Wednesday and it was straight forward and I felt totally prepared thanks to your awesome lectures! Thank you so much!!"

"Hi Dr. Mariwalla, just took surgery core today and there were some questions I only knew from watching your videos, thank you!!!"

"So thankful for all the time you dedicate to teaching us. Everything you thought was very high yield and even after taking the board I still joined 21@21 cause I didn't want to miss anything. Thank you again 💗"

"Took the surg core yesterday and breezed through it, all thanks to you!! But more importantly, I truly felt like I learned a lot and enjoyed doing it. 🤓 Can't thank you enough for all the time you spend teaching us residents. Will forever tune into all your sessions because you're one of the best teachers I've ever had 💕"

"Thank you for teaching us and standing up for us. As a woman, a mother and a foreign medical graduate that has worked really hard to be where I am (3 years of unpaid research with 30+ publications) you touched my heart and made me feel heard and represented"

"Ok, so 21@21 gang is totally passing this core... 💪🏻 You did a great job preparing us (at least me). I think the best feedback is people need to read the question really well, and understand what they're trying to ask."

"Surgery core went well! A lot lot easier than I anticipated. But better to over prepare than under prepare!"

"I just wanted to thank you so so much for everything you do. I seriously love you! I took the sug and peds core todat and felt very prepared (esp surgery). I think I've watched every one of your videos on Boards University and only didn't know a handful of questions on the exam. I was honestly bummed I didn't have a single staging question or merkel cell question because I was so ready!! Thanks again!!"

"I just got my core scores and got 94% percentile on surgery thanks to you!! Thank you so much for all you do for resident education"

"Hi Dr. Mariwalla!! I wanted to let you know I crushed my surgery core and attribute so much of it to you and all the Boards University faculty!! Thank you for all you do!!"