| D007223 |
Infant |
A child between 1 and 23 months of age. |
Infants |
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| D011177 |
Postal Service |
The functions and activities carried out by the U.S. Postal Service, foreign postal services, and private postal services such as Federal Express. |
Mail,Mail Distribution,Mail-Order,Service, Postal,Distribution, Mail,Distributions, Mail,Mail Distributions,Mail Order,Mail-Orders,Mails,Postal Services,Services, Postal |
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| D011795 |
Surveys and Questionnaires |
Collections of data obtained from voluntary subjects. The information usually takes the form of answers to questions, or suggestions. |
Community Survey,Nonrespondent,Questionnaire,Questionnaires,Respondent,Survey,Survey Method,Survey Methods,Surveys,Baseline Survey,Community Surveys,Methodology, Survey,Nonrespondents,Questionnaire Design,Randomized Response Technique,Repeated Rounds of Survey,Respondents,Survey Methodology,Baseline Surveys,Design, Questionnaire,Designs, Questionnaire,Methods, Survey,Questionnaire Designs,Questionnaires and Surveys,Randomized Response Techniques,Response Technique, Randomized,Response Techniques, Randomized,Survey, Baseline,Survey, Community,Surveys, Baseline,Surveys, Community,Techniques, Randomized Response |
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| D006801 |
Humans |
Members of the species Homo sapiens. |
Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man |
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| D014429 |
Twins, Dizygotic |
Two offspring from the same PREGNANCY. They are from two OVA, fertilized at about the same time by two SPERMATOZOA. Such twins are genetically distinct and can be of different sexes. |
Twins, Fraternal,Dizygotic Twin,Dizygotic Twins,Fraternal Twin,Fraternal Twins,Twin, Dizygotic,Twin, Fraternal |
|
| D014430 |
Twins, Monozygotic |
Two off-spring from the same PREGNANCY. They are from a single fertilized OVUM that split into two EMBRYOS. Such twins are usually genetically identical and of the same sex. |
Twins, Identical,Identical Twin,Identical Twins,Monozygotic Twin,Monozygotic Twins,Twin, Identical,Twin, Monozygotic |
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