function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Chen, Ronglian & Zhang, Faqi & Chen, Shilong & Chi, Xiaofeng', 2],
    ['Hoi, Quach Van & Dung, Luong Van & Doudkin, Roman V.', 2],
    ['Hu, Renchuan & Wei, Sujuan & Liufu, Yongqing & Nong, Yunkai', 1],
    ['Info Flora', 1],
    ['Jarvis, Charlie', 4],
    ['Jiang, Yin-Zi & Yu, Xiang-Qin & Zhang, Tao & Peng, Hua', 3],
    ['Lee, Jong-Won & Yun, Ho-Geun & Hwang, Tae Young & Kim, Kyungmin', 1],
    ['Lin, Min & Ye, Qin-Liang & Zhang, Zhi-Jian & Liao, Wen-Bo', 1],
    ['Navia, Denise & Duarte, Mercia Elias & Flechtmann, Carlos H. W.', 1],
    ['Nguy ễn 1, Danh-Hung & Lương 2, Văn-Dũng & Le 3, Thi-Hương', 1],
    ['Suh, Soo-Jung', 2],
    ['Ye, Pin-Ming & Huang, Yu-Song & Huang, Jian-Feng & Liu, En-De', 1],
    ['Yu, Xiang-Qin & Liu, En-De & Liu, Zhen-Wen & Xiao, Bo', 2],
    ['Zhang, Qiong & Wu, Fang-Yuan & Huang, Yao-Heng & Ma, Jin-Lin', 1],
    ['Zhao, Dongwei', 18],
    ['Other (2)', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=43)',
    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);