function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Banks, Nathan & Snyder, Thomas E.', 1],
    ['Bourguignon, Thomas & Roisin, Yves', 21],
    ['Caesar, Maram & Roy, Roger & Legendre, Frederic', 1],
    ['Castro, Daniel', 1],
    ['Castro, Daniel & Scheffrahn, Rudolf H.', 1],
    ['Chen, Guan-Yu & Ke, Yun-Ling & Liang, Wei-Ren & Li, Hou-Feng', 2],
    ['ENGEL, MICHAEL S. & KRISHNA, KUMAR', 2],
    ['Engel, Michael S. & Grimaldi, David A. & Nascimbene, Paul C.', 4],
    ['Fornazier, M. J. & Martins, D. S. & Fanton, C. J.', 1],
    ['Guo, Mingxia & Xing, Lida & Wang, Bo & Zhang, Weiwei', 1],
    ['Herhold, Hollister W & Davis, Steven R & Degrey, Samuel P', 1],
    ['Krishna, Kumar & Grimaldi, David A. & Krishna, Valerie', 8],
    ['Meurgey, François & Ramage, Thibault', 3],
    ['Perkovsky, Evgeny E. & Nel, André', 2],
    ['Takematsu, Yoko & Vongkaluang, Charunee', 16],
    ['Other (6)', 6]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=71)',
    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);