function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Cox, Jennifer M.', 18],
    ['Ellenrieder, Natalia Von & Stocks, Ian C.', 1],
    ['Ellenrieder, Natalia Von & Watson, Gillian W. & Kinnee, Scott A.', 1],
    ['Gutierrez-Patricio, Sara & Gonzalez-Pimentel, Jose L.', 1],
    ['Hodgson, Chris', 2],
    ['Hodgson, Chris J. & Łagowska, Bozena', 2],
    ['Jung, Hye Su & Yoon, Jung-Hoon & Joh, Kiseong & Seong, Chi-Nam', 2],
    ['Lee, Jae-Yun & Jeong, Yun-Seok & Kim, Pil Soo', 1],
    ['MOGHADDAM, MASUMEH & WATSON, GILLIAN W.', 2],
    ['Mazzeo, Gaetana & Franco, José Carlos & Russo, Agatino', 1],
    ['Moghaddam, Masumeh', 3],
    ['Suh, Soo-Jung & Bombay, Khanxay', 1],
    ['Zarkani, Agustin & Ercan, Cansu & Apriyanto, Dwinardi', 1],
    ['Zhang, Jiang-Tao & Li, Chao-Qun & Liu, Xing-Ping & Wang, Yan', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=39)',
    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);