function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Baleeiro, Paulo C. & Gonella, Paulo M. & Sano, Paulo T.', 16],
    ['Gillespie, Lynn J. & Saarela, Jeffery M. & Sokoloff, Paul C.', 2],
    ['Gonella, Paulo Minatel & Barbosa-Silva, Rafael Gomes', 2],
    ['Guedes, Felipe Martins & Miranda, Vitor Fernandes Oliveira', 45],
    ['Hess, Hans Ernst & Landolt, Elias & Hirzel, Rosmarie', 12],
    ['Howell, Nathan & Krings, Alexander & Braham, Richard R', 12],
    ['Info Flora', 18],
    ['Ito, Yu & Barfod, Anders S.', 10],
    ['Jarvis, Charlie', 11],
    ['Jeanmonod, Daniel', 2],
    ['Konrad Lauber & Gerhart Wagner & Andreas Gygax', 11],
    ['Kundrata, Robin', 55],
    ['Linnaeus, Carolus', 11],
    ['Thornhill, Robert & Krings, Alexander & Lindbo, David', 8],
    ['Zhou, Ya-Dong & Mwachala, Geoffrey & Hu, Guang-Wan', 3],
    ['Other (12)', 15]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=233)',
    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);