function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bejarano, Eduar Elías & Estrada, Luis Gregorio', 41],
    ['Curler, Gregory R.', 2],
    ['De Andrade, Andrey J. & Shimabukuro, Paloma H. F.', 1],
    ['Depaquit, Jérôme & Muller, Frederique & Léger, Nicole', 1],
    ['Dvořák, Vít & Tsirigotakis, Nikolaos & Pavlou, Christoforos', 1],
    ['Guo, Mingxia & Xing, Lida & Wang, Bo & Zhang, Weiwei', 2],
    ['Jezek, Jan & Chvojka, Pavel & Manko, Peter & Obona, Jozef', 9],
    ['Ježek, Jan & Manko, Peter & Oboňa, Jozef', 4],
    ['O’Hara, James E. & Cerretti, Pierfilippo & Pape, Thomas', 1],
    ['Randrianambinintsoa, Fano José & Léger, Nicole & Robert, Vincent', 1],
    ['Stebner, Frauke & Solórzano Kraemer, Mónica M.', 1],
    ['Trájer, A. J. & Hammer, T. & Padisák, J.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=65)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 12, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);