function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Deng, Yunfei', 1],
    ['Forster, Johann Reinhold & Forster, Johann George Adam', 1],
    ['Fu, Long-Fei & Do, Van Truong & Wen, Fang & He, Cheng-Xin', 1],
    ['Fu, Long-Fei & Monro, Alexandre K. & Wen, Fang & Xin, Zi-Bing', 1],
    ['Perry, Lily May', 15],
    ['Rechinger, Karl Heinz', 2],
    ['Ridley, Henry Nicholas', 4],
    ['Triyutthachai, Natthawut & Fu, Long-Fei & Triboun, Pramote', 3],
    ['Wei, Y. G. & Monro, A. K. & Wang, W. T.', 7],
    ['Wei, Yi-Gang & Monro, A. K. & Wang, Wen-Tsai', 3],
    ['Winkler, Hubert J. P.', 16],
    ['Wu, Zeng-Yuan & Wang, Wen-Tsai & Wang, Hong & Li, De-Zhu', 2],
    ['Xin, Zi-Bing & Monro, Alexandre K. & Wang, Ren-Fen', 3],
    ['Yin, Dan-Hong & Huang, Teng-Fei & Lu, Zhen & Duan, Lin-Dong', 2],
    ['Zhou, Ya-Dong & Mwachala, Geoffrey & Hu, Guang-Wan', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=62)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 15, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);