function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Connors, Matthew G.', 23],
    ['Greyvenstein, Bianca & van den Berg, Johnnie', 23],
    ['Liu, Qin-Peng & Liu, Zi-Jun & Wang, Guo-Li & Yin, Zi-Xu', 29],
    ['Maxwell, Michael R.', 22],
    ['Mohammad, Salwa Kamal & Alla, Sohair Mohammad Gad', 31],
    ['Moulin, Nicolas & Decaens, Thibaud & Annoyer, Philippe', 24],
    ['Pfäuti, Patrice & Hollier, John', 14],
    ['Rivera, Julio & Vergara-Cobián, Clorinda', 41],
    ['Rodrigues, Henrique Miranda & Cancello, Eliana Marques', 15],
    ['Roy R.', 17],
    ['Roy, Roger', 16],
    ['Schwarz, Christian J. & Ehrmann, Reinhard & Stiewe, Martin B. D.', 34],
    ['Schwarz, Christian J. & Konopik, Oliver', 18],
    ['Schwarz, Christian J. & Pohl, Marius & Frank, Erik T.', 12],
    ['Wang, Ying-jian & Yang, Lin & Ye, Fei & Chen, Xiang-sheng', 16],
    ['Other (39)', 140]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=475)',
    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);