function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bayarsaikhan, Ulziijargal & Bae, Yang ˗ Seop', 8],
    ['Bayarsaikhan, Ulziijargal & Cha, Yeong-Bin & Lee, Tak-Gi', 11],
    ['Bayarsaikhan, Ulziijargal & Heppner, John B. & Kwon, Hyung-Wook', 3],
    ['Bayarsaikhan, Ulziijargal & Hirai, Norio & Černý, Karel', 11],
    ['Bayarsaikhan, Ulziijargal & Kwon, Hyung Wook & Kim, Kil Won', 12],
    ['Bayarsaikhan, Ulziijargal & Lee, Dong ˗ June & Bae, Yang ˗ Seop', 10],
    ['Bayarsaikhan, Ulziijargal & Li, Houhun & Im, Kyung-Hoan', 9],
    ['Singh, Navneet & Joshi, Rahul & Kirti, Jagbir Singh', 6],
    ['Zhao, Ting Ting & Han, Hui Lin', 5]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=75)',
    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);