function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Aoki, Satoshi & Li, Pan & Matsuo, Ayumi & Suyama, Yoshihisa', 5],
    ['Cabezudo, Baltasar & Solanas, Federico Casimiro-Soriguer', 4],
    ['Chew, Wee-Lek', 4],
    ['Hess, Hans Ernst & Landolt, Elias & Hirzel, Rosmarie', 6],
    ['Info Flora', 5],
    ['Jarvis, Charlie', 30],
    ['Lee, Jong-Won & Yun, Ho-Geun & Hwang, Tae Young & Kim, Kyungmin', 14],
    ['Molino, Jean-François & Sabatier, Daniel & Grenand, Pierre', 28],
    ['Monro, A. K.', 5],
    ['Perry, Lily May', 15],
    ['Ridley, Henry Nicholas', 10],
    ['Royen, Pieter van', 10],
    ['Wei, Y. G. & Monro, A. K. & Wang, W. T.', 7],
    ['Winkler, Hubert J. P.', 34],
    ['Zhou, Ya-Dong & Mwachala, Geoffrey & Hu, Guang-Wan', 17],
    ['Other (38)', 71]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=265)',
    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);