function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Chen, Hong-Wei & Gao, Jian-Jun & Wen, Shuo-Yang', 1],
    ['Chen, Hong-Wei & Toda, Masanori J.', 34],
    ['Chen, Hong-Wei & Watabe, Hide-Aki & Gao, Jian-Jun', 34],
    ['Gornostaev, N. G. & Kulikov, A. M.', 1],
    ['Gornostaev, N. G. & Lyupina, Yu. V.', 2],
    ['Gornostaev, N. G. & Sorokina, S. Yu.', 2],
    ['He, Xiaofang & Jiang, Jian-Jun & Cao, Hua-Zhi & Chen, Hong-Wei', 5],
    ['Huang, Jia & Gong, Lu & Tsaur, Shun-Chern & Zhu, Lin', 1],
    ['Jens-H', 2],
    ['Jones, Lance E. & Grimaldi, David A.', 59],
    ['Sidorenko, V. S.', 2],
    ['Toda, Masanori J. & Sidorenko, Vasily S. & Watabe, Hide-aki', 2],
    ['Zhao, Feng & Xu, Xiaoyang & Jiang, Jianjun & He, Xiaofang', 4]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=149)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 13, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);