function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['AL-Shehbaz, Ihsan A. & Barriera, Gabrielle', 594],
    ['Cabezudo, Baltasar & Solanas, Federico Casimiro-Soriguer', 78],
    ['German, Dmitry A. & Hendriks, Kasper P. & Koch, Marcus A.', 14],
    ['Hernández-Jiménez, Carlos A. & Flores-Villela, Oscar', 16],
    ['Hess, Hans Ernst & Landolt, Elias & Hirzel, Rosmarie', 261],
    ['Info Flora', 252],
    ['Jarvis, Charlie', 264],
    ['Konrad Lauber & Gerhart Wagner & Andreas Gygax', 194],
    ['Lee, Jong-Won & Yun, Ho-Geun & Hwang, Tae Young & Kim, Kyungmin', 17],
    ['Molino, Jean-François & Sabatier, Daniel & Grenand, Pierre', 12],
    ['Reich, Dieter & Gutermann, Walter & Bardy, Katharina', 77],
    ['Reveal, James L. & Chase, Mark W. & Iii, - Apg & Iii, Apg', 16],
    ['Roalson, Eric H.', 26],
    ['Salariato, Diego L. & Zuloaga, Fernando O.', 24],
    ['Zhou, Ya-Dong & Mwachala, Geoffrey & Hu, Guang-Wan', 30],
    ['Other (142)', 358]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=2233)',
    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);