function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Anirudhan, Anitha Melesuparambil & Mani, Bince', 2],
    ['Arya, Sindhu & Govind, Murugan Govindakurup', 3],
    ['Cheek, Martin & Osborne, Jo & van der Burgt, Xander', 2],
    ['Fischer, Eberhard & Abrahamczyk, Stefan & Holstein, Norbert', 14],
    ['Fischer, Eberhard & Rahelivololona, Marie Elisette', 8],
    ['Fischer, Eberhard & Rahelivololona, Marie Élisette', 4],
    ['Hess, Hans Ernst & Landolt, Elias & Hirzel, Rosmarie', 5],
    ['Hu, Tian & Peng, Shuai & Zhou, Xin-Xin & Zheng, Yi-Ming', 2],
    ['Info Flora', 5],
    ['Jarvis, Charlie', 6],
    ['Konrad Lauber & Gerhart Wagner & Andreas Gygax', 4],
    ['Lee, Jong-Won & Yun, Ho-Geun & Hwang, Tae Young & Kim, Kyungmin', 3],
    ['Singh, Harsh & Sharma, Ashutosh & Adamowski, Wojciech', 3],
    ['Souvannakhoummane, K. & Newman, M. F. & Lanorsavanh, S.', 10],
    ['Zhou, Ya-Dong & Mwachala, Geoffrey & Hu, Guang-Wan', 8],
    ['Other (31)', 33]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=112)',
    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);