TY - BOOK ID - 127865325 TI - Oral health surveys : basic methods. PY - 1997 SN - 9241544937 PB - Geneva : WHO, DB - UniCat KW - Dental Health Surveys. KW - Dental surveys. KW - Teeth KW - Diseases. UR - https://www.unicat.be/uniCat?func=search&query=sysid:127865325 AB - ER -