function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Ackland, D. M.', 49],
    ['Dawah, Hassan A. & Abdullah, Mohammed A. & Deeming, John C.', 20],
    ['Evenhuis, Neal L. & O’Hara, James E. & Pape, Thomas', 19],
    ['Fabricius, Johann Christian', 14],
    ['Gomes, Roberto Pereira & Fogaça, João Manuel', 18],
    ['Grisales, Diana & De Carvalho, Claudio J. B.', 15],
    ['Linnaeus, Carolus', 104],
    ['Michelsen, Verner', 124],
    ['Pont, Adrian C.', 126],
    ['Schlüsslmayr, Gerhard', 19],
    ['Schrank, Franz von Paula', 14],
    ['Sforzi, Alessandra & Sommaggio, Daniele', 65],
    ['Sorokina, Vera S. & Pont, Adrian C.', 35],
    ['Xue, Wan-Qi & Song, Wen-Hui', 27],
    ['ZHANG, XUFENG & ZHU, WEIBING', 212],
    ['Other (51)', 169]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=1030)',
    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);