TY - BOOK AU - A. Ross, David||G. Smith, Peter||H. Morrow, Richard TI - Chapter 2 Types of intervention and their development KW - procedures||methods||field trials||disease control||interventions||health UR - https://library.oapen.org/bitstream/20.500.12657/29884/1/Types%20of%20intervention%20and%20their%20development%20-%20Field%20Trials%20of%20Health%20Interventions%20-%20NCBI%20Bookshelf.pdf||https://library.oapen.org/bitstream/20.500.12657/29884/1/Types%20of%20intervention%20and%20their%20development%20-%20Field%20Trials%20of%20Health%20Interventions%20-%20NCBI%20Bookshelf.pdf||https://library.oapen.org/bitstream/20.500.12657/29884/1/Types%20of%20intervention%20and%20their%20development%20-%20Field%20Trials%20of%20Health%20Interventions%20-%20NCBI%20Bookshelf.pdf ER -