function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Chen, Xin-Yu & Su, Gui-Fen', 1],
    ['Guo, Mingxia & Xing, Lida & Wang, Bo & Zhang, Weiwei', 8],
    ['Herhold, Hollister W & Davis, Steven R & Degrey, Samuel P', 1],
    ['Kocarek, Petr & Horka, Ivona', 1],
    ['Kočárek, Petr & Horká, Ivona', 2],
    ['Kočárek, Petr & Wahab, Rodzay Abdul & Kahar, Siti Rafhiah Abdul', 2],
    ['Mashimo, Yuta & Müller, Patrick & Beutel, Rolf G.', 1],
    ['Mashimo, Yuta & Müller, Patrick & Pohl, Hans & Beutel, Rolf G.', 1],
    ['Mashimo, Yuta & Yoshizawa, Kazunori & Engel, Michael S.', 5],
    ['Perez-Gelabert, Daniel E.', 1],
    ['R. G. Beutel & S. N. Gorb', 1],
    ['Terry, Matthew D. & Whiting, Michael F.', 1],
    ['Wang, Jianyun & Li, Hu & Cai, Wanzhi', 1],
    ['Yin, Zi-Wei & Cai, Chenyang & Huang, Diying', 2],
    ['Yin, Zi-Wei & Li, Li-Zhen & Wu, Chao', 2],
    ['Other (1)', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=31)',
    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);