function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Carlton, Christopher E. & MacRae, Ted C. & Tishechkin, Alexey K.', 4],
    ['Davidson, J. M.', 4],
    ['Eschscholtz, Johann Friedrich von', 1],
    ['Guo, Mingxia & Xing, Lida & Wang, Bo & Zhang, Weiwei', 2],
    ['Hansen, Jason A.', 3],
    ['Pérez-Hernández, Cisteil Xinum', 28],
    ['Reyes-González, Roberto & Toledo-Hernández, Víctor Hugo', 6],
    ['Volkovitsh, Mark', 5],
    ['Volkovitsh, Mark G.', 7],
    ['Volkovitsh, Mаrk G.', 5],
    ['Westcott, R. L. & Nelson, G. H.', 3],
    ['Westcott, Richard L.', 4],
    ['Westcott, Richard L. & Bílý, Svatopluk', 2],
    ['Westcott, Richard L. & Hespenheide, Henry A. & N, Jesús Romero', 2],
    ['Westcott, Richard L. & Raschko, Mike', 18],
    ['Other (10)', 10]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=104)',
    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);