The phrase "a sample of country" is not correct in standard written English.
It may be intended to refer to a representation or example of a particular country, but it lacks clarity and specificity.
Example: "The exhibition features a sample of country music from various regions across the United States."
Alternatives: "a representation of a country" or "an example of a country".
We aim to provide a comprehensive description of available data sources, propose a set of indicators for monitoring the global landscape of health R&D, and present a sample of country indicators on research inputs (investments), processes (clinical trials), and outputs (publications), based on data from international databases.
The top panel includes a sample of country pairs with low migration rates, which include some pairs with flat trend (e.g. North American in Ireland or Japan, Chinese in Korea), and others with important increases over the sample period (Somali in Italy, Polish in Austria, Swedish in Finland).
Here's a sample of countries across the world and how their policies compare, according to the Global Detention Project, a Geneva-based non-profit organisation.
Based on a sample of countries where Waze is popular the U.S., the U.K., Canada, Brazil, France and Mexico—Friday was the most popular day to drive.
2By using a panel framework, we face the difficulty that we merge a sample of countries that may have heterogeneous labour markets.
Aguayo-Rico and Iris [28] used a sample of countries from four continents: 13 European countries, 12 African countries, 16 American countries, and 11 Asian countries to examine the impact of health on economic growth over the period 1970 80 and 1980 90.
11 We selected a sample of countries according to the classification system developed by Clark and Beckfield.
In brief, the primary research was conducted using a stratified multistage cluster sampling design in order to obtain a sample of countries and health institutions worldwide.
In a sample of countries, SSN expenditure was estimated to average 10.3 %of total public social expenditures and 32.6%% of expenditures on basic social services.
Furthermore, a sample of countries will be chosen to representatively assess incidence and disease distribution in all continents, including monitoring of regional and nationwide media, wherever possible.
Using an existing network of early career psychiatrists, high, low and middle-income countries were identified to obtain a sample of countries with a wide variation in mental health care systems and health care spending.
