function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Anlaş, S.', 2],
    ['Anlaş, S. & A. F', 1],
    ['Assing, V.', 28],
    ['Assing, Volker', 36],
    ['Broun, Thomas', 1],
    ['Rood, Rodney Jay & Brunke, Adam & Solodovnikov, Alexey', 1],
    ['Samin, N. & Imani, S.', 1],
    ['Stephens, James Francis', 1],
    ['Türkmen, Senem Özdemir & Şimşek, Burcu Şabanoğlu & Sert, Osman', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=74)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 9, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);