function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Forster, Raymond Robert', 1],
    ['Forster, Raymond Robert & Platnick, Norman I.', 1],
    ['Guo, Mingxia & Xing, Lida & Wang, Bo & Zhang, Weiwei', 10],
    ['Harvey, Mark S.', 1],
    ['Judson, Mark L. I.', 1],
    ['Lotz, Leon N.', 4],
    ['Rix, Michael G. & Harvey, Mark S.', 45],
    ['Saupe, Erin E. & Selden, Paul A.', 2],
    ['Selden, Paul A. & Dunlop, Jason A.', 2],
    ['Wood, Hannah', 2],
    ['Wood, Hannah M. & Scharff, Nikolaj', 30],
    ['Wood, Hannah M. & Singh, Hukam & Grimaldi, David A.', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=101)',
    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);