function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Chen, Qian & Dai, Yu-Cheng', 2],
    ['Chen, Qian & Liu, Lu & Zhang, De-Shun & Dong, Li-Li', 2],
    ['Chen, Qian & Luo, Hua-Dong & Cheng, Na & Zhang, De-Shun', 3],
    ['Du, Ping & Cao, Tian-Xu & Wu, Ying-Da & Zhou, Meng', 2],
    ['Gomes-Silva, Allyne Christina & Ryvarden, Leif', 3],
    ['Gunaseelan, Sugantha & Kezo, Kezhocuyi', 4],
    ['Jarvis, Charlie', 3],
    ['Ji, Xiao-Hong & Vlasak, Josef & Tian, Xue-Mei & Dai, Yu-Cheng', 3],
    ['Karunarathna, Samantha C. & Priyashantha, K Hasith', 14],
    ['Regio, Nicolas do Carmo & Palacio, Melissa', 3],
    ['Vlasák, Josef & Li, Hai-Jiao & Zhou, Li-Wei & Dai, Yu-Cheng', 4],
    ['X, Vitor & Lima, avier de & T, Virton Rodrigo', 12],
    ['Zambrano-Forero, Cristian J & Davila-Giraldo, Lina R', 4],
    ['Zhang, Xiaojie & Yuan, Qi & Su, Jiangqing & Zhao, Changlin', 10],
    ['da Silva, Maria Aparecida & de Jesus, Maria Aparecida', 7],
    ['Other (17)', 24]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=100)',
    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);