function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Badli-Sham, Baizul Hafsyam & Syafiq, Muhamad Fatihah', 2],
    ['Figueroa, Alex & Low, Martyn E. Y. & Lim, Kelvin K. P.', 2],
    ['Iskandar, Djoko T. & Arifin, Umilaela & Rachmansah, Angga', 1],
    ['Koehler, Gunther & Vargas, Joseph & Than, Ni Lar', 1],
    ['Lyu, Zhi-Tong & Wang, Jian & Zeng, Zhao-Chi & Luo, Lin', 2],
    ['Matsui, Masafumi & Nishikawa, Kanto & Eto, Koshiro', 1],
    ['Mulcahy, Daniel G. & Lee, Justin L. & Miller, Aryeh H.', 3],
    ['Tran, Tung Thanh & Hoang, Chung Van & Luong, Anh Mai', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=13)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 8, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);