maimuna used to dump her garbage on a river bank. but now, she actively collects and separates trash, looking for items to recycle. >> translator: i never thought garbage would help keep us healthy. i would have been able to save my daughters' lives had this clinic existed. i hope this program expands so that many lives will be saved. >> reporter: gamal is due to open another clinic in september. his activities have spurred health authorities to start similar programs in other regions. the young doctor is winning international recognition. in 2014, he was awarded the young sustainability entrepreneur prize by britain's prince charles, chosen from a field of over 500 candidates. >> translator: my dream is to enable more people to receive medical care, not only in indonesia. i am determined to work hard for this. >> reporter: health care for the poor and a cleaner environment, gamal is determined to prove that innovative thinking can tackle some of the major problems plaguing developing nations. fransiska renatta, nhk world, indonesia.