function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Andréfouët, Serge & Chen, Wei-Jen & Kinch, Jeff & Mana, Ralph', 5],
    ['Bariche, Michel & Fricke, Ronald', 1],
    ['Bleeker, Pieter', 4],
    ['Du, Jianguo & Loh, Kar-Hoe & Hu, Wenjia & Zheng, Xinqing', 4],
    ['Golani, Daniel & Bogorodsky, Sergey V.', 3],
    ['Gon, Ofer', 5],
    ['Hamilton, F. Buchanan', 2],
    ['Klausewitz, Wolfgang', 1],
    ['Montrouzier, X.', 1],
    ['Poey, F.', 1],
    ['Radcliffe, L.', 1],
    ['Russell, Barry C. & Fraser, Thomas H. & Larson, Helen K.', 2],
    ['Smith, J. L. B.', 1],
    ['Vaillant, L. L.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=32)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 14, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);