function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Chen, Che-Chih & Wu, Sheng-Hua & Chen, Chi-Yu', 2],
    ['Gorjón, Sergio P. & Jesus, Maria Aparecida De', 7],
    ['Han, Mei-Ling & Bian, Lu-Sen & Zhang, Yu-Xin & Zhu, Ming-Cui', 1],
    ['Karunarathna, Samantha C. & Priyashantha, K Hasith', 8],
    ['Miettinen, Otto & Spirin, Viacheslav & Vlasak, Josef', 22],
    ['Regio, Nicolas do Carmo & Palacio, Melissa', 1],
    ['Soares, Adriene Mayra Da Silva & Sotão, Helen Maria Pontes', 3],
    ['Tibpromma, Saowaluck & Hyde, Kevin D. & Bhat, Jayarama D.', 1],
    ['Westphalen, Mauro C. & Motato-Vásquez, Viviana', 2],
    ['Wu, Sheng-Hua & Chen, Che-Chih & Wei, Chia-Ling', 3],
    ['Xu, Tai-Min & Sun, Yi-Fei & Liu, Shun & Song, Chang-Ge', 1],
    ['Zambrano-Forero, Cristian J & Davila-Giraldo, Lina R', 1],
    ['Zhang, Xiaojie & Yuan, Qi & Su, Jiangqing & Zhao, Changlin', 13],
    ['de la Fuente, Javier Isaac & García-Jiménez, Jesús', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=67)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 14, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);