function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Avontuur, Juanita R. & Palmer, Marike & Beukes, Chrizelle W.', 3],
    ['Bird, Lina J. & Kuenen, J. Gijs & Osburn, Magdalena R.', 4],
    ['Chambers, James & Sparks, Natalie & Sydney, Natashia', 5],
    ['Fesharaki-Esfahani, Monireh & Shahpiri, Azar', 2],
    ['Jung, Hye Su & Yoon, Jung-Hoon & Joh, Kiseong & Seong, Chi-Nam', 31],
    ['Jung-Hoon Yoon & Soo-Hwan Yeo & In-Gi Kim & Tae-Kwang Oh', 2],
    ['Kim, Jong-Hwa & Kanjanasuntree, Rungravee & Kim, Dae-Hoon', 2],
    ['Klopfstein, Seraina & Kropf, Christian & Baur, Hannes', 2],
    ['Lee, Jae-Yun & Jeong, Yun-Seok & Kim, Pil Soo', 7],
    ['Liu, Weiwei & Shao, Chen & Gong, Jun & Li, Jiqiu & Lin, Xiaofeng', 2],
    ['Lu, Huibin & Deng, Tongchu & Liu, Feifei & Wang, Yonghong', 4],
    ['Müller, Otto Friedrich', 13],
    ['Ou, Fang-hong & Gao, Zeng-hong & Chen, Mei-hong & Bi, Jie-yi', 2],
    ['Park, Mi-Jeong & Namirimu, Teddy & Yang, Sung-Hyun', 4],
    ['WHIDDEN, HOWARD P.', 6],
    ['Other (32)', 32]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=121)',
    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);