function drawChartSpecimensByCountry() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Specimen Count (overall)'],
    ['Angola', 2],
    ['Burundi', 1],
    ['Cameroon', 2],
    ['Democratic Republic of the Congo', 7],
    ['Gabon', 3],
    ['Kenya', 8],
    ['Madagascar', 18],
    ['Malawi', 3],
    ['Mauritius', 8],
    ['Mozambique', 4],
    ['Niger', 1],
    ['Nigeria', 4],
    ['Republic of the Congo', 2],
    ['Réunion', 4],
    ['Sierra Leone', 3],
    ['South Africa', 3],
    ['Tanzania', 4],
    ['Uganda', 3],
    ['Zambia', 64],
    ['Zimbabwe', 1]
  ]);
  var chartOptions = {
    region: 'world',
    fontSize: 'automatic',
    title: 'n=145',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'SpecimensByCountry', 'geo', 20, 0);
  var chart = new google.visualization.GeoChart(document.getElementById('chartDivSpecimensByCountry'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['geochart']});
google.setOnLoadCallback(drawChartSpecimensByCountry);