function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Adlard, R. D. & Peirce, M. A. & Lederer, R.', 3],
    ['As, Johann Van & Davies, Angela J. & Smit, Nico J.', 1],
    ['Ccagas, Carogina Romeiro Fernandes & Bukauskaitė, Dovigė', 1],
    ['Chavatte, Jean-Marc & Grès, Virginie & Snounou, Georges', 9],
    ['Chavatte, Jean-Marc & Okumura, Chiharu & Landau, Irène', 1],
    ['Cook, Courtney A. & Netherlands, Edward C. & Van As, Johann', 2],
    ['Genovez-Oliveira, Jhon Lennon & Cardozo, Sergian V.', 1],
    ['Girard, Yvette A. & Johnson, Christine K. & Fritz, Heather M.', 2],
    ['Gjerde, Bjørn & Vikøren, Turid & Hamnes, Inger Sofie', 2],
    ['Guo, Mingxia & Xing, Lida & Wang, Bo & Zhang, Weiwei', 2],
    ['Harl, Josef & Fauchois, Anaïs & Puech, Marie-Pierre', 2],
    ['Paperna, Ilan & Keong, Malcolm Soh Chu & May, Charlotte Yap Aye', 32],
    ['Peirce, M. A. & Adlard, R. D.', 3],
    ['Scherrer, Patrick & Ryser-Degiorgis, Marie-Pierre', 4],
    ['Zhao, Huanzhi & Zhu, Shunhai & Zhao, Qiping & Huang, Bing', 2],
    ['Other (16)', 16]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=83)',
    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);