function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Desutter-Grandcolas, Laure', 4],
    ['Desutter-Grandcolas, Laure & Anso, Jérémy & Jourdan, Hervé', 6],
    ['Gu, J. X. & Dai, L. & Huang, J. H.', 9],
    ['He, Zhi-Xin & Ma, Li-Bin & Zhang, Tao & Miao, Xiao-Lan', 6],
    ['He, Zhixin & Wang, Ning & Huang, Huateng & Ma, Libin', 4],
    ['He, Zhixin & Zhang, Tao & Ma, Libin', 40],
    ['He, Zhuqing & Liu, Yuqing & Lu, Hui & Wang, Hanqiang', 4],
    ['Hollier, John & Bruckner, Harald & Heads, Sam W.', 24],
    ['Hugel, S.', 9],
    ['Hugel, Sylvain & Desutter-Grandcolas, Laure', 12],
    ['Li, Shi-Yu & Liu, Yi-Jiao & He, Zhu-Qing', 7],
    ['Pereira, Marcelo Ribeiro & Sperber, Carlos Frankl', 4],
    ['Tan, Ming Kai & Baroga-Barbecho, Jessica B. & Yap, Sheryl A.', 9],
    ['Yang, C. & Wei, Z. - D. & Liu, T. & Liu, H. - Y.', 5],
    ['Zefa, Edison & Martins, Luciano De Pinho', 19],
    ['Other (30)', 62]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=224)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);