function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bazzi, Gaia & Galimberti, Andrea & Foglini, Claudio', 5],
    ['DeMarmels, Jurg', 1],
    ['Dijkstra, Klaas-Douwe B. & Kalkman, Vincent J. & Dow, Rory A.', 1],
    ['Fabricius, J. C.', 3],
    ['Fabricius, Johann Christian', 1],
    ['Ghahari, H. & Thipaksorn, A. & Naderian, H. & Sakenin, H. & A. A', 1],
    ['Grand, Daniel & Marinov, Milen & Jourdan, Herve & Cook, Carl', 1],
    ['Herhold, Hollister W & Davis, Steven R & Degrey, Samuel P', 2],
    ['Jocque, Merlijn & Garrison, Rosser', 1],
    ['Kormondy, E. J.', 1],
    ['Novelo-Gutiérrez, Rodolfo & Tennessen, Kenneth J.', 2],
    ['Pompilio, Lucia & Mosini, Andrea', 3],
    ['Prokop, Jakub & Pecharová, Martina & Nel, André', 2],
    ['Thoma, Marco & Althaus, Sarah', 2],
    ['Zhang, Hao-Miao & Cai, Qing-Hua', 2],
    ['Other (5)', 5]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=33)',
    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);